Home / 910,040.40-1,365,125.40-278,953.20

Finding the Fourth Proportional to 910,040.40, 1,365,125.40 and 278,953.20

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Solution

The fourth proportional to 910,040.40, 1,365,125.40 and 278,953.20 is: 418,449.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,040.40 : 1,365,125.40 = 278,953.20 : x
  2. Step 2: Convert to fraction form
    910,040.40/1,365,125.40 = 278,953.20/x
  3. Step 3: Cross multiply
    910,040.40x = 1,365,125.40 × 278,953.20
  4. Step 4: Simplify right side
    910,040.40x = 380,806,098,731.28
  5. Step 5: Solve for x
    x = 380,806,098,731.28/910,040.40
  6. Step 6: Final answer
    x = 418,449.66

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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.