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Finding the Fourth Proportional to 524,454.80, 723,561 and 309,487.28

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Solution

The fourth proportional to 524,454.80, 723,561 and 309,487.28 is: 426,982.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,454.80 : 723,561 = 309,487.28 : x
  2. Step 2: Convert to fraction form
    524,454.80/723,561 = 309,487.28/x
  3. Step 3: Cross multiply
    524,454.80x = 723,561 × 309,487.28
  4. Step 4: Simplify right side
    524,454.80x = 223,932,925,804.08
  5. Step 5: Solve for x
    x = 223,932,925,804.08/524,454.80
  6. Step 6: Final answer
    x = 426,982.32

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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.