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Finding the Fourth Proportional to 524,873.38, 724,075.80 and 309,869.42

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Solution

The fourth proportional to 524,873.38, 724,075.80 and 309,869.42 is: 427,472.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,873.38 : 724,075.80 = 309,869.42 : x
  2. Step 2: Convert to fraction form
    524,873.38/724,075.80 = 309,869.42/x
  3. Step 3: Cross multiply
    524,873.38x = 724,075.80 × 309,869.42
  4. Step 4: Simplify right side
    524,873.38x = 224,368,948,182.04
  5. Step 5: Solve for x
    x = 224,368,948,182.04/524,873.38
  6. Step 6: Final answer
    x = 427,472.52

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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.