Home / 987,142.32-1,480,713.68-356,056.07

Finding the Fourth Proportional to 987,142.32, 1,480,713.68 and 356,056.07

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Solution

The fourth proportional to 987,142.32, 1,480,713.68 and 356,056.07 is: 534,084.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,142.32 : 1,480,713.68 = 356,056.07 : x
  2. Step 2: Convert to fraction form
    987,142.32/1,480,713.68 = 356,056.07/x
  3. Step 3: Cross multiply
    987,142.32x = 1,480,713.68 × 356,056.07
  4. Step 4: Simplify right side
    987,142.32x = 527,217,084,512.19
  5. Step 5: Solve for x
    x = 527,217,084,512.19/987,142.32
  6. Step 6: Final answer
    x = 534,084.17

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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.