Home / 762,685.32-1,052,571.12-418,587.75

Finding the Fourth Proportional to 762,685.32, 1,052,571.12 and 418,587.75

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Solution

The fourth proportional to 762,685.32, 1,052,571.12 and 418,587.75 is: 577,686.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,685.32 : 1,052,571.12 = 418,587.75 : x
  2. Step 2: Convert to fraction form
    762,685.32/1,052,571.12 = 418,587.75/x
  3. Step 3: Cross multiply
    762,685.32x = 1,052,571.12 × 418,587.75
  4. Step 4: Simplify right side
    762,685.32x = 440,593,376,835.78
  5. Step 5: Solve for x
    x = 440,593,376,835.78/762,685.32
  6. Step 6: Final answer
    x = 577,686.98

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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.