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Finding the Fourth Proportional to 575,374.78, 794,357.40 and 511,535.89

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Solution

The fourth proportional to 575,374.78, 794,357.40 and 511,535.89 is: 706,221.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,374.78 : 794,357.40 = 511,535.89 : x
  2. Step 2: Convert to fraction form
    575,374.78/794,357.40 = 511,535.89/x
  3. Step 3: Cross multiply
    575,374.78x = 794,357.40 × 511,535.89
  4. Step 4: Simplify right side
    575,374.78x = 406,342,319,587.09
  5. Step 5: Solve for x
    x = 406,342,319,587.09/575,374.78
  6. Step 6: Final answer
    x = 706,221.99

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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.