Home / 574,985.40-793,480.68-320,345.52

Finding the Fourth Proportional to 574,985.40, 793,480.68 and 320,345.52

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Solution

The fourth proportional to 574,985.40, 793,480.68 and 320,345.52 is: 442,077.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,985.40 : 793,480.68 = 320,345.52 : x
  2. Step 2: Convert to fraction form
    574,985.40/793,480.68 = 320,345.52/x
  3. Step 3: Cross multiply
    574,985.40x = 793,480.68 × 320,345.52
  4. Step 4: Simplify right side
    574,985.40x = 254,187,981,044.55
  5. Step 5: Solve for x
    x = 254,187,981,044.55/574,985.40
  6. Step 6: Final answer
    x = 442,077.28

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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.