Home / 688,071.03-949,531.46-386,262.87

Finding the Fourth Proportional to 688,071.03, 949,531.46 and 386,262.87

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Solution

The fourth proportional to 688,071.03, 949,531.46 and 386,262.87 is: 533,039.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,071.03 : 949,531.46 = 386,262.87 : x
  2. Step 2: Convert to fraction form
    688,071.03/949,531.46 = 386,262.87/x
  3. Step 3: Cross multiply
    688,071.03x = 949,531.46 × 386,262.87
  4. Step 4: Simplify right side
    688,071.03x = 366,768,744,963.58
  5. Step 5: Solve for x
    x = 366,768,744,963.58/688,071.03
  6. Step 6: Final answer
    x = 533,039.07

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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.