Home / 881,211.16-1,216,068.42-499,310.74

Finding the Fourth Proportional to 881,211.16, 1,216,068.42 and 499,310.74

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Solution

The fourth proportional to 881,211.16, 1,216,068.42 and 499,310.74 is: 689,047.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,211.16 : 1,216,068.42 = 499,310.74 : x
  2. Step 2: Convert to fraction form
    881,211.16/1,216,068.42 = 499,310.74/x
  3. Step 3: Cross multiply
    881,211.16x = 1,216,068.42 × 499,310.74
  4. Step 4: Simplify right side
    881,211.16x = 607,196,022,680.83
  5. Step 5: Solve for x
    x = 607,196,022,680.83/881,211.16
  6. Step 6: Final answer
    x = 689,047.13

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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.