Home / 824,195.80-1,235,309.55-424,630.90

Finding the Fourth Proportional to 824,195.80, 1,235,309.55 and 424,630.90

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Solution

The fourth proportional to 824,195.80, 1,235,309.55 and 424,630.90 is: 636,439.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,195.80 : 1,235,309.55 = 424,630.90 : x
  2. Step 2: Convert to fraction form
    824,195.80/1,235,309.55 = 424,630.90/x
  3. Step 3: Cross multiply
    824,195.80x = 1,235,309.55 × 424,630.90
  4. Step 4: Simplify right side
    824,195.80x = 524,550,605,995.10
  5. Step 5: Solve for x
    x = 524,550,605,995.10/824,195.80
  6. Step 6: Final answer
    x = 636,439.31

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Double scale
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1.5x scale

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.