Home / 1,159,689.62-1,600,384.65-643,452.86

Finding the Fourth Proportional to 1,159,689.62, 1,600,384.65 and 643,452.86

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Solution

The fourth proportional to 1,159,689.62, 1,600,384.65 and 643,452.86 is: 887,972.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,689.62 : 1,600,384.65 = 643,452.86 : x
  2. Step 2: Convert to fraction form
    1,159,689.62/1,600,384.65 = 643,452.86/x
  3. Step 3: Cross multiply
    1,159,689.62x = 1,600,384.65 × 643,452.86
  4. Step 4: Simplify right side
    1,159,689.62x = 1,029,772,080,142.60
  5. Step 5: Solve for x
    x = 1,029,772,080,142.60/1,159,689.62
  6. Step 6: Final answer
    x = 887,972.15

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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.