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Finding the Fourth Proportional to 573,110.68, 790,877.04 and 318,455.32

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Solution

The fourth proportional to 573,110.68, 790,877.04 and 318,455.32 is: 439,459.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,110.68 : 790,877.04 = 318,455.32 : x
  2. Step 2: Convert to fraction form
    573,110.68/790,877.04 = 318,455.32/x
  3. Step 3: Cross multiply
    573,110.68x = 790,877.04 × 318,455.32
  4. Step 4: Simplify right side
    573,110.68x = 251,859,000,853.85
  5. Step 5: Solve for x
    x = 251,859,000,853.85/573,110.68
  6. Step 6: Final answer
    x = 439,459.62

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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.