Home / 874,830.80-1,312,246.20-432,462.80

Finding the Fourth Proportional to 874,830.80, 1,312,246.20 and 432,462.80

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Solution

The fourth proportional to 874,830.80, 1,312,246.20 and 432,462.80 is: 648,694.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,830.80 : 1,312,246.20 = 432,462.80 : x
  2. Step 2: Convert to fraction form
    874,830.80/1,312,246.20 = 432,462.80/x
  3. Step 3: Cross multiply
    874,830.80x = 1,312,246.20 × 432,462.80
  4. Step 4: Simplify right side
    874,830.80x = 567,497,665,941.36
  5. Step 5: Solve for x
    x = 567,497,665,941.36/874,830.80
  6. Step 6: Final answer
    x = 648,694.20

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Similar ratio
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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.