Home / 454,328.10-681,492.15-448,423.20

Finding the Fourth Proportional to 454,328.10, 681,492.15 and 448,423.20

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Solution

The fourth proportional to 454,328.10, 681,492.15 and 448,423.20 is: 672,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,328.10 : 681,492.15 = 448,423.20 : x
  2. Step 2: Convert to fraction form
    454,328.10/681,492.15 = 448,423.20/x
  3. Step 3: Cross multiply
    454,328.10x = 681,492.15 × 448,423.20
  4. Step 4: Simplify right side
    454,328.10x = 305,596,890,677.88
  5. Step 5: Solve for x
    x = 305,596,890,677.88/454,328.10
  6. Step 6: Final answer
    x = 672,634.80

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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.