Home / 1,290,254.10-1,933,631.55-862,574.10

Finding the Fourth Proportional to 1,290,254.10, 1,933,631.55 and 862,574.10

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Solution

The fourth proportional to 1,290,254.10, 1,933,631.55 and 862,574.10 is: 1,292,691.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,254.10 : 1,933,631.55 = 862,574.10 : x
  2. Step 2: Convert to fraction form
    1,290,254.10/1,933,631.55 = 862,574.10/x
  3. Step 3: Cross multiply
    1,290,254.10x = 1,933,631.55 × 862,574.10
  4. Step 4: Simplify right side
    1,290,254.10x = 1,667,900,493,972.86
  5. Step 5: Solve for x
    x = 1,667,900,493,972.86/1,290,254.10
  6. Step 6: Final answer
    x = 1,292,691.49

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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.