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Finding the Fourth Proportional to 602,480.16, 831,431.10 and 330,543.11

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Solution

The fourth proportional to 602,480.16, 831,431.10 and 330,543.11 is: 456,154.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,480.16 : 831,431.10 = 330,543.11 : x
  2. Step 2: Convert to fraction form
    602,480.16/831,431.10 = 330,543.11/x
  3. Step 3: Cross multiply
    602,480.16x = 831,431.10 × 330,543.11
  4. Step 4: Simplify right side
    602,480.16x = 274,823,821,544.72
  5. Step 5: Solve for x
    x = 274,823,821,544.72/602,480.16
  6. Step 6: Final answer
    x = 456,154.14

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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.