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Finding the Fourth Proportional to 454,920.90, 682,381.35 and 366,347.40

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Solution

The fourth proportional to 454,920.90, 682,381.35 and 366,347.40 is: 549,521.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,920.90 : 682,381.35 = 366,347.40 : x
  2. Step 2: Convert to fraction form
    454,920.90/682,381.35 = 366,347.40/x
  3. Step 3: Cross multiply
    454,920.90x = 682,381.35 × 366,347.40
  4. Step 4: Simplify right side
    454,920.90x = 249,988,633,380.99
  5. Step 5: Solve for x
    x = 249,988,633,380.99/454,920.90
  6. Step 6: Final answer
    x = 549,521.10

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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.