Home / 431,246.20-646,869.30-369,038.20

Finding the Fourth Proportional to 431,246.20, 646,869.30 and 369,038.20

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Solution

The fourth proportional to 431,246.20, 646,869.30 and 369,038.20 is: 553,557.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,246.20 : 646,869.30 = 369,038.20 : x
  2. Step 2: Convert to fraction form
    431,246.20/646,869.30 = 369,038.20/x
  3. Step 3: Cross multiply
    431,246.20x = 646,869.30 × 369,038.20
  4. Step 4: Simplify right side
    431,246.20x = 238,719,482,107.26
  5. Step 5: Solve for x
    x = 238,719,482,107.26/431,246.20
  6. Step 6: Final answer
    x = 553,557.30

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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.