Home / 887,699.32-1,225,000.46-500,511.35

Finding the Fourth Proportional to 887,699.32, 1,225,000.46 and 500,511.35

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Solution

The fourth proportional to 887,699.32, 1,225,000.46 and 500,511.35 is: 690,691.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,699.32 : 1,225,000.46 = 500,511.35 : x
  2. Step 2: Convert to fraction form
    887,699.32/1,225,000.46 = 500,511.35/x
  3. Step 3: Cross multiply
    887,699.32x = 1,225,000.46 × 500,511.35
  4. Step 4: Simplify right side
    887,699.32x = 613,126,638,299.00
  5. Step 5: Solve for x
    x = 613,126,638,299.00/887,699.32
  6. Step 6: Final answer
    x = 690,691.80

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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.