Home / 591,421.80-887,132.70-325,045.20

Finding the Fourth Proportional to 591,421.80, 887,132.70 and 325,045.20

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Solution

The fourth proportional to 591,421.80, 887,132.70 and 325,045.20 is: 487,567.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,421.80 : 887,132.70 = 325,045.20 : x
  2. Step 2: Convert to fraction form
    591,421.80/887,132.70 = 325,045.20/x
  3. Step 3: Cross multiply
    591,421.80x = 887,132.70 × 325,045.20
  4. Step 4: Simplify right side
    591,421.80x = 288,358,225,898.04
  5. Step 5: Solve for x
    x = 288,358,225,898.04/591,421.80
  6. Step 6: Final answer
    x = 487,567.80

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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.