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Finding the Fourth Proportional to 478,557.84, 660,439.23 and 263,697.84

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Solution

The fourth proportional to 478,557.84, 660,439.23 and 263,697.84 is: 363,919.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,557.84 : 660,439.23 = 263,697.84 : x
  2. Step 2: Convert to fraction form
    478,557.84/660,439.23 = 263,697.84/x
  3. Step 3: Cross multiply
    478,557.84x = 660,439.23 × 263,697.84
  4. Step 4: Simplify right side
    478,557.84x = 174,156,398,402.26
  5. Step 5: Solve for x
    x = 174,156,398,402.26/478,557.84
  6. Step 6: Final answer
    x = 363,919.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.