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Finding the Fourth Proportional to 574,678.80, 793,064.52 and 320,036.40

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Solution

The fourth proportional to 574,678.80, 793,064.52 and 320,036.40 is: 441,654.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,678.80 : 793,064.52 = 320,036.40 : x
  2. Step 2: Convert to fraction form
    574,678.80/793,064.52 = 320,036.40/x
  3. Step 3: Cross multiply
    574,678.80x = 793,064.52 × 320,036.40
  4. Step 4: Simplify right side
    574,678.80x = 253,809,513,948.53
  5. Step 5: Solve for x
    x = 253,809,513,948.53/574,678.80
  6. Step 6: Final answer
    x = 441,654.56

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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.