Home / 753,114.78-1,129,672.58-472,828.86

Finding the Fourth Proportional to 753,114.78, 1,129,672.58 and 472,828.86

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Solution

The fourth proportional to 753,114.78, 1,129,672.58 and 472,828.86 is: 709,243.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,114.78 : 1,129,672.58 = 472,828.86 : x
  2. Step 2: Convert to fraction form
    753,114.78/1,129,672.58 = 472,828.86/x
  3. Step 3: Cross multiply
    753,114.78x = 1,129,672.58 × 472,828.86
  4. Step 4: Simplify right side
    753,114.78x = 534,141,795,810.51
  5. Step 5: Solve for x
    x = 534,141,795,810.51/753,114.78
  6. Step 6: Final answer
    x = 709,243.54

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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.