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Finding the Fourth Proportional to 491,567.70, 678,001.24 and 370,714.08

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Solution

The fourth proportional to 491,567.70, 678,001.24 and 370,714.08 is: 511,312.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,567.70 : 678,001.24 = 370,714.08 : x
  2. Step 2: Convert to fraction form
    491,567.70/678,001.24 = 370,714.08/x
  3. Step 3: Cross multiply
    491,567.70x = 678,001.24 × 370,714.08
  4. Step 4: Simplify right side
    491,567.70x = 251,344,605,925.46
  5. Step 5: Solve for x
    x = 251,344,605,925.46/491,567.70
  6. Step 6: Final answer
    x = 511,312.29

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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.