Home / 1,138,429.20-1,709,612.10-606,988.20

Finding the Fourth Proportional to 1,138,429.20, 1,709,612.10 and 606,988.20

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Solution

The fourth proportional to 1,138,429.20, 1,709,612.10 and 606,988.20 is: 911,531.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,429.20 : 1,709,612.10 = 606,988.20 : x
  2. Step 2: Convert to fraction form
    1,138,429.20/1,709,612.10 = 606,988.20/x
  3. Step 3: Cross multiply
    1,138,429.20x = 1,709,612.10 × 606,988.20
  4. Step 4: Simplify right side
    1,138,429.20x = 1,037,714,371,277.22
  5. Step 5: Solve for x
    x = 1,037,714,371,277.22/1,138,429.20
  6. Step 6: Final answer
    x = 911,531.76

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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.