Home / 685,565.36-1,027,008.84-472,295.60

Finding the Fourth Proportional to 685,565.36, 1,027,008.84 and 472,295.60

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Solution

The fourth proportional to 685,565.36, 1,027,008.84 and 472,295.60 is: 707,520.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,565.36 : 1,027,008.84 = 472,295.60 : x
  2. Step 2: Convert to fraction form
    685,565.36/1,027,008.84 = 472,295.60/x
  3. Step 3: Cross multiply
    685,565.36x = 1,027,008.84 × 472,295.60
  4. Step 4: Simplify right side
    685,565.36x = 485,051,756,293.10
  5. Step 5: Solve for x
    x = 485,051,756,293.10/685,565.36
  6. Step 6: Final answer
    x = 707,520.81

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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.