Home / 887,700.39-1,225,001.77-500,512.42

Finding the Fourth Proportional to 887,700.39, 1,225,001.77 and 500,512.42

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Solution

The fourth proportional to 887,700.39, 1,225,001.77 and 500,512.42 is: 690,693.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,700.39 : 1,225,001.77 = 500,512.42 : x
  2. Step 2: Convert to fraction form
    887,700.39/1,225,001.77 = 500,512.42/x
  3. Step 3: Cross multiply
    887,700.39x = 1,225,001.77 × 500,512.42
  4. Step 4: Simplify right side
    887,700.39x = 613,128,600,406.98
  5. Step 5: Solve for x
    x = 613,128,600,406.98/887,700.39
  6. Step 6: Final answer
    x = 690,693.17

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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.