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Finding the Fourth Proportional to 496,867.80, 745,301.70 and 286,332.60

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Solution

The fourth proportional to 496,867.80, 745,301.70 and 286,332.60 is: 429,498.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,867.80 : 745,301.70 = 286,332.60 : x
  2. Step 2: Convert to fraction form
    496,867.80/745,301.70 = 286,332.60/x
  3. Step 3: Cross multiply
    496,867.80x = 745,301.70 × 286,332.60
  4. Step 4: Simplify right side
    496,867.80x = 213,404,173,545.42
  5. Step 5: Solve for x
    x = 213,404,173,545.42/496,867.80
  6. Step 6: Final answer
    x = 429,498.90

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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.