Home / 1,412,689.60-2,119,034.38-415,417.60

Finding the Fourth Proportional to 1,412,689.60, 2,119,034.38 and 415,417.60

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Solution

The fourth proportional to 1,412,689.60, 2,119,034.38 and 415,417.60 is: 623,126.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,689.60 : 2,119,034.38 = 415,417.60 : x
  2. Step 2: Convert to fraction form
    1,412,689.60/2,119,034.38 = 415,417.60/x
  3. Step 3: Cross multiply
    1,412,689.60x = 2,119,034.38 × 415,417.60
  4. Step 4: Simplify right side
    1,412,689.60x = 880,284,176,457.09
  5. Step 5: Solve for x
    x = 880,284,176,457.09/1,412,689.60
  6. Step 6: Final answer
    x = 623,126.39

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.