Home / 778,491.55-1,074,344.85-451,779.27

Finding the Fourth Proportional to 778,491.55, 1,074,344.85 and 451,779.27

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Solution

The fourth proportional to 778,491.55, 1,074,344.85 and 451,779.27 is: 623,470.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,491.55 : 1,074,344.85 = 451,779.27 : x
  2. Step 2: Convert to fraction form
    778,491.55/1,074,344.85 = 451,779.27/x
  3. Step 3: Cross multiply
    778,491.55x = 1,074,344.85 × 451,779.27
  4. Step 4: Simplify right side
    778,491.55x = 485,366,726,689.54
  5. Step 5: Solve for x
    x = 485,366,726,689.54/778,491.55
  6. Step 6: Final answer
    x = 623,470.77

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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.