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Finding the Fourth Proportional to 520,312.22, 780,552.49 and 160,398.87

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Solution

The fourth proportional to 520,312.22, 780,552.49 and 160,398.87 is: 240,624.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,312.22 : 780,552.49 = 160,398.87 : x
  2. Step 2: Convert to fraction form
    520,312.22/780,552.49 = 160,398.87/x
  3. Step 3: Cross multiply
    520,312.22x = 780,552.49 × 160,398.87
  4. Step 4: Simplify right side
    520,312.22x = 125,199,740,805.53
  5. Step 5: Solve for x
    x = 125,199,740,805.53/520,312.22
  6. Step 6: Final answer
    x = 240,624.25

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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.