Home / 525,724.40-788,586.60-442,780.40

Finding the Fourth Proportional to 525,724.40, 788,586.60 and 442,780.40

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Solution

The fourth proportional to 525,724.40, 788,586.60 and 442,780.40 is: 664,170.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,724.40 : 788,586.60 = 442,780.40 : x
  2. Step 2: Convert to fraction form
    525,724.40/788,586.60 = 442,780.40/x
  3. Step 3: Cross multiply
    525,724.40x = 788,586.60 × 442,780.40
  4. Step 4: Simplify right side
    525,724.40x = 349,170,690,182.64
  5. Step 5: Solve for x
    x = 349,170,690,182.64/525,724.40
  6. Step 6: Final answer
    x = 664,170.60

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Double scale
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Similar ratio
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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.