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Finding the Fourth Proportional to 539,421.92, 744,401.71 and 297,704.62

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Solution

The fourth proportional to 539,421.92, 744,401.71 and 297,704.62 is: 410,832.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,421.92 : 744,401.71 = 297,704.62 : x
  2. Step 2: Convert to fraction form
    539,421.92/744,401.71 = 297,704.62/x
  3. Step 3: Cross multiply
    539,421.92x = 744,401.71 × 297,704.62
  4. Step 4: Simplify right side
    539,421.92x = 221,611,828,202.90
  5. Step 5: Solve for x
    x = 221,611,828,202.90/539,421.92
  6. Step 6: Final answer
    x = 410,832.08

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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.