Home / 884,039.72-1,220,121.60-521,552.68

Finding the Fourth Proportional to 884,039.72, 1,220,121.60 and 521,552.68

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Solution

The fourth proportional to 884,039.72, 1,220,121.60 and 521,552.68 is: 719,829.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,039.72 : 1,220,121.60 = 521,552.68 : x
  2. Step 2: Convert to fraction form
    884,039.72/1,220,121.60 = 521,552.68/x
  3. Step 3: Cross multiply
    884,039.72x = 1,220,121.60 × 521,552.68
  4. Step 4: Simplify right side
    884,039.72x = 636,357,690,405.89
  5. Step 5: Solve for x
    x = 636,357,690,405.89/884,039.72
  6. Step 6: Final answer
    x = 719,829.30

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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.