Home / 810,246.84-1,118,134.08-447,669.60

Finding the Fourth Proportional to 810,246.84, 1,118,134.08 and 447,669.60

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Solution

The fourth proportional to 810,246.84, 1,118,134.08 and 447,669.60 is: 617,780.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,246.84 : 1,118,134.08 = 447,669.60 : x
  2. Step 2: Convert to fraction form
    810,246.84/1,118,134.08 = 447,669.60/x
  3. Step 3: Cross multiply
    810,246.84x = 1,118,134.08 × 447,669.60
  4. Step 4: Simplify right side
    810,246.84x = 500,554,636,339.97
  5. Step 5: Solve for x
    x = 500,554,636,339.97/810,246.84
  6. Step 6: Final answer
    x = 617,780.42

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.