Home / 753,415.05-1,039,731.52-409,250.87

Finding the Fourth Proportional to 753,415.05, 1,039,731.52 and 409,250.87

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Solution

The fourth proportional to 753,415.05, 1,039,731.52 and 409,250.87 is: 564,776.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,415.05 : 1,039,731.52 = 409,250.87 : x
  2. Step 2: Convert to fraction form
    753,415.05/1,039,731.52 = 409,250.87/x
  3. Step 3: Cross multiply
    753,415.05x = 1,039,731.52 × 409,250.87
  4. Step 4: Simplify right side
    753,415.05x = 425,511,029,126.42
  5. Step 5: Solve for x
    x = 425,511,029,126.42/753,415.05
  6. Step 6: Final answer
    x = 564,776.39

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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.