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Finding the Fourth Proportional to 491,871.60, 737,807.40 and 403,225.20

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Solution

The fourth proportional to 491,871.60, 737,807.40 and 403,225.20 is: 604,837.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,871.60 : 737,807.40 = 403,225.20 : x
  2. Step 2: Convert to fraction form
    491,871.60/737,807.40 = 403,225.20/x
  3. Step 3: Cross multiply
    491,871.60x = 737,807.40 × 403,225.20
  4. Step 4: Simplify right side
    491,871.60x = 297,502,536,426.48
  5. Step 5: Solve for x
    x = 297,502,536,426.48/491,871.60
  6. Step 6: Final answer
    x = 604,837.80

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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.