Home / 972,515.77-1,342,139.39-542,879.77

Finding the Fourth Proportional to 972,515.77, 1,342,139.39 and 542,879.77

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Solution

The fourth proportional to 972,515.77, 1,342,139.39 and 542,879.77 is: 749,211.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,515.77 : 1,342,139.39 = 542,879.77 : x
  2. Step 2: Convert to fraction form
    972,515.77/1,342,139.39 = 542,879.77/x
  3. Step 3: Cross multiply
    972,515.77x = 1,342,139.39 × 542,879.77
  4. Step 4: Simplify right side
    972,515.77x = 728,620,320,636.74
  5. Step 5: Solve for x
    x = 728,620,320,636.74/972,515.77
  6. Step 6: Final answer
    x = 749,211.83

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Double scale
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1.5x scale

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.