Home / 753,068.78-1,129,603.58-472,782.86

Finding the Fourth Proportional to 753,068.78, 1,129,603.58 and 472,782.86

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Solution

The fourth proportional to 753,068.78, 1,129,603.58 and 472,782.86 is: 709,174.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,068.78 : 1,129,603.58 = 472,782.86 : x
  2. Step 2: Convert to fraction form
    753,068.78/1,129,603.58 = 472,782.86/x
  3. Step 3: Cross multiply
    753,068.78x = 1,129,603.58 × 472,782.86
  4. Step 4: Simplify right side
    753,068.78x = 534,057,208,854.73
  5. Step 5: Solve for x
    x = 534,057,208,854.73/753,068.78
  6. Step 6: Final answer
    x = 709,174.54

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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.