Home / 591,643.40-887,465.10-486,667.40

Finding the Fourth Proportional to 591,643.40, 887,465.10 and 486,667.40

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Solution

The fourth proportional to 591,643.40, 887,465.10 and 486,667.40 is: 730,001.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,643.40 : 887,465.10 = 486,667.40 : x
  2. Step 2: Convert to fraction form
    591,643.40/887,465.10 = 486,667.40/x
  3. Step 3: Cross multiply
    591,643.40x = 887,465.10 × 486,667.40
  4. Step 4: Simplify right side
    591,643.40x = 431,900,332,807.74
  5. Step 5: Solve for x
    x = 431,900,332,807.74/591,643.40
  6. Step 6: Final answer
    x = 730,001.10

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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.