Home / 1,147,138.32-1,583,017.38-630,891.69

Finding the Fourth Proportional to 1,147,138.32, 1,583,017.38 and 630,891.69

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Solution

The fourth proportional to 1,147,138.32, 1,583,017.38 and 630,891.69 is: 870,612.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,138.32 : 1,583,017.38 = 630,891.69 : x
  2. Step 2: Convert to fraction form
    1,147,138.32/1,583,017.38 = 630,891.69/x
  3. Step 3: Cross multiply
    1,147,138.32x = 1,583,017.38 × 630,891.69
  4. Step 4: Simplify right side
    1,147,138.32x = 998,712,510,167.57
  5. Step 5: Solve for x
    x = 998,712,510,167.57/1,147,138.32
  6. Step 6: Final answer
    x = 870,612.11

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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.