Home / 695,129.60-1,042,694.40-545,830.40

Finding the Fourth Proportional to 695,129.60, 1,042,694.40 and 545,830.40

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Solution

The fourth proportional to 695,129.60, 1,042,694.40 and 545,830.40 is: 818,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,129.60 : 1,042,694.40 = 545,830.40 : x
  2. Step 2: Convert to fraction form
    695,129.60/1,042,694.40 = 545,830.40/x
  3. Step 3: Cross multiply
    695,129.60x = 1,042,694.40 × 545,830.40
  4. Step 4: Simplify right side
    695,129.60x = 569,134,301,429.76
  5. Step 5: Solve for x
    x = 569,134,301,429.76/695,129.60
  6. Step 6: Final answer
    x = 818,745.60

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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.