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Finding the Fourth Proportional to 479,426.80, 718,967.40 and 242,690.80

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Solution

The fourth proportional to 479,426.80, 718,967.40 and 242,690.80 is: 363,948.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,426.80 : 718,967.40 = 242,690.80 : x
  2. Step 2: Convert to fraction form
    479,426.80/718,967.40 = 242,690.80/x
  3. Step 3: Cross multiply
    479,426.80x = 718,967.40 × 242,690.80
  4. Step 4: Simplify right side
    479,426.80x = 174,486,773,479.92
  5. Step 5: Solve for x
    x = 174,486,773,479.92/479,426.80
  6. Step 6: Final answer
    x = 363,948.73

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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.