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Finding the Fourth Proportional to 524,488.16, 723,685.20 and 306,654.86

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Solution

The fourth proportional to 524,488.16, 723,685.20 and 306,654.86 is: 423,120.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,488.16 : 723,685.20 = 306,654.86 : x
  2. Step 2: Convert to fraction form
    524,488.16/723,685.20 = 306,654.86/x
  3. Step 3: Cross multiply
    524,488.16x = 723,685.20 × 306,654.86
  4. Step 4: Simplify right side
    524,488.16x = 221,921,583,690.07
  5. Step 5: Solve for x
    x = 221,921,583,690.07/524,488.16
  6. Step 6: Final answer
    x = 423,120.29

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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.