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Finding the Fourth Proportional to 605,411.80, 908,312.10 and 268,322.20

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Solution

The fourth proportional to 605,411.80, 908,312.10 and 268,322.20 is: 402,569.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,411.80 : 908,312.10 = 268,322.20 : x
  2. Step 2: Convert to fraction form
    605,411.80/908,312.10 = 268,322.20/x
  3. Step 3: Cross multiply
    605,411.80x = 908,312.10 × 268,322.20
  4. Step 4: Simplify right side
    605,411.80x = 243,720,300,958.62
  5. Step 5: Solve for x
    x = 243,720,300,958.62/605,411.80
  6. Step 6: Final answer
    x = 402,569.46

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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.