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Finding the Fourth Proportional to 602,290.17, 831,146.13 and 330,355.65

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Solution

The fourth proportional to 602,290.17, 831,146.13 and 330,355.65 is: 455,882.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,290.17 : 831,146.13 = 330,355.65 : x
  2. Step 2: Convert to fraction form
    602,290.17/831,146.13 = 330,355.65/x
  3. Step 3: Cross multiply
    602,290.17x = 831,146.13 × 330,355.65
  4. Step 4: Simplify right side
    602,290.17x = 274,573,820,021.14
  5. Step 5: Solve for x
    x = 274,573,820,021.14/602,290.17
  6. Step 6: Final answer
    x = 455,882.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.