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Finding the Fourth Proportional to 605,412.30, 908,312.85 and 268,322.70

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Solution

The fourth proportional to 605,412.30, 908,312.85 and 268,322.70 is: 402,570.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,412.30 : 908,312.85 = 268,322.70 : x
  2. Step 2: Convert to fraction form
    605,412.30/908,312.85 = 268,322.70/x
  3. Step 3: Cross multiply
    605,412.30x = 908,312.85 × 268,322.70
  4. Step 4: Simplify right side
    605,412.30x = 243,720,956,356.70
  5. Step 5: Solve for x
    x = 243,720,956,356.70/605,412.30
  6. Step 6: Final answer
    x = 402,570.21

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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.