Home / 647,962.30-971,943.45-448,227.10

Finding the Fourth Proportional to 647,962.30, 971,943.45 and 448,227.10

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Solution

The fourth proportional to 647,962.30, 971,943.45 and 448,227.10 is: 672,340.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,962.30 : 971,943.45 = 448,227.10 : x
  2. Step 2: Convert to fraction form
    647,962.30/971,943.45 = 448,227.10/x
  3. Step 3: Cross multiply
    647,962.30x = 971,943.45 × 448,227.10
  4. Step 4: Simplify right side
    647,962.30x = 435,651,393,957.50
  5. Step 5: Solve for x
    x = 435,651,393,957.50/647,962.30
  6. Step 6: Final answer
    x = 672,340.65

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Double scale
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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.