Home / 840,137.22-1,159,479.28-513,641.82

Finding the Fourth Proportional to 840,137.22, 1,159,479.28 and 513,641.82

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Solution

The fourth proportional to 840,137.22, 1,159,479.28 and 513,641.82 is: 708,880.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,137.22 : 1,159,479.28 = 513,641.82 : x
  2. Step 2: Convert to fraction form
    840,137.22/1,159,479.28 = 513,641.82/x
  3. Step 3: Cross multiply
    840,137.22x = 1,159,479.28 × 513,641.82
  4. Step 4: Simplify right side
    840,137.22x = 595,557,047,631.49
  5. Step 5: Solve for x
    x = 595,557,047,631.49/840,137.22
  6. Step 6: Final answer
    x = 708,880.68

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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.