Home / 830,662.81-1,146,315.09-448,689.58

Finding the Fourth Proportional to 830,662.81, 1,146,315.09 and 448,689.58

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Solution

The fourth proportional to 830,662.81, 1,146,315.09 and 448,689.58 is: 619,191.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,662.81 : 1,146,315.09 = 448,689.58 : x
  2. Step 2: Convert to fraction form
    830,662.81/1,146,315.09 = 448,689.58/x
  3. Step 3: Cross multiply
    830,662.81x = 1,146,315.09 × 448,689.58
  4. Step 4: Simplify right side
    830,662.81x = 514,339,636,279.76
  5. Step 5: Solve for x
    x = 514,339,636,279.76/830,662.81
  6. Step 6: Final answer
    x = 619,191.84

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Double scale
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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.