Home / 724,851.06-1,000,634.45-418,867.68

Finding the Fourth Proportional to 724,851.06, 1,000,634.45 and 418,867.68

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Solution

The fourth proportional to 724,851.06, 1,000,634.45 and 418,867.68 is: 578,233.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,851.06 : 1,000,634.45 = 418,867.68 : x
  2. Step 2: Convert to fraction form
    724,851.06/1,000,634.45 = 418,867.68/x
  3. Step 3: Cross multiply
    724,851.06x = 1,000,634.45 × 418,867.68
  4. Step 4: Simplify right side
    724,851.06x = 419,133,430,599.58
  5. Step 5: Solve for x
    x = 419,133,430,599.58/724,851.06
  6. Step 6: Final answer
    x = 578,233.87

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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.