Home / 724,872.94-1,000,266.10-418,969.13

Finding the Fourth Proportional to 724,872.94, 1,000,266.10 and 418,969.13

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Solution

The fourth proportional to 724,872.94, 1,000,266.10 and 418,969.13 is: 578,143.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,872.94 : 1,000,266.10 = 418,969.13 : x
  2. Step 2: Convert to fraction form
    724,872.94/1,000,266.10 = 418,969.13/x
  3. Step 3: Cross multiply
    724,872.94x = 1,000,266.10 × 418,969.13
  4. Step 4: Simplify right side
    724,872.94x = 419,080,611,636.74
  5. Step 5: Solve for x
    x = 419,080,611,636.74/724,872.94
  6. Step 6: Final answer
    x = 578,143.55

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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.