Home / 688,366.53-949,774.02-412,767.65

Finding the Fourth Proportional to 688,366.53, 949,774.02 and 412,767.65

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Solution

The fourth proportional to 688,366.53, 949,774.02 and 412,767.65 is: 569,516.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,366.53 : 949,774.02 = 412,767.65 : x
  2. Step 2: Convert to fraction form
    688,366.53/949,774.02 = 412,767.65/x
  3. Step 3: Cross multiply
    688,366.53x = 949,774.02 × 412,767.65
  4. Step 4: Simplify right side
    688,366.53x = 392,035,985,517.58
  5. Step 5: Solve for x
    x = 392,035,985,517.58/688,366.53
  6. Step 6: Final answer
    x = 569,516.34

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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.