Home / 753,338.75-1,039,615.12-409,178.01

Finding the Fourth Proportional to 753,338.75, 1,039,615.12 and 409,178.01

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Solution

The fourth proportional to 753,338.75, 1,039,615.12 and 409,178.01 is: 564,669.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,338.75 : 1,039,615.12 = 409,178.01 : x
  2. Step 2: Convert to fraction form
    753,338.75/1,039,615.12 = 409,178.01/x
  3. Step 3: Cross multiply
    753,338.75x = 1,039,615.12 × 409,178.01
  4. Step 4: Simplify right side
    753,338.75x = 425,387,650,377.54
  5. Step 5: Solve for x
    x = 425,387,650,377.54/753,338.75
  6. Step 6: Final answer
    x = 564,669.82

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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.