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Finding the Fourth Proportional to 520,035.30, 780,052.95 and 460,937.70

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Solution

The fourth proportional to 520,035.30, 780,052.95 and 460,937.70 is: 691,406.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,035.30 : 780,052.95 = 460,937.70 : x
  2. Step 2: Convert to fraction form
    520,035.30/780,052.95 = 460,937.70/x
  3. Step 3: Cross multiply
    520,035.30x = 780,052.95 × 460,937.70
  4. Step 4: Simplify right side
    520,035.30x = 359,555,812,651.22
  5. Step 5: Solve for x
    x = 359,555,812,651.22/520,035.30
  6. Step 6: Final answer
    x = 691,406.55

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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.