Home / 887,000.96-1,224,061.12-479,102.72

Finding the Fourth Proportional to 887,000.96, 1,224,061.12 and 479,102.72

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Solution

The fourth proportional to 887,000.96, 1,224,061.12 and 479,102.72 is: 661,161.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,000.96 : 1,224,061.12 = 479,102.72 : x
  2. Step 2: Convert to fraction form
    887,000.96/1,224,061.12 = 479,102.72/x
  3. Step 3: Cross multiply
    887,000.96x = 1,224,061.12 × 479,102.72
  4. Step 4: Simplify right side
    887,000.96x = 586,451,012,038.25
  5. Step 5: Solve for x
    x = 586,451,012,038.25/887,000.96
  6. Step 6: Final answer
    x = 661,161.64

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Double scale
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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.