Home / 688,054.60-949,515.30-386,248.36

Finding the Fourth Proportional to 688,054.60, 949,515.30 and 386,248.36

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Solution

The fourth proportional to 688,054.60, 949,515.30 and 386,248.36 is: 533,022.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,054.60 : 949,515.30 = 386,248.36 : x
  2. Step 2: Convert to fraction form
    688,054.60/949,515.30 = 386,248.36/x
  3. Step 3: Cross multiply
    688,054.60x = 949,515.30 × 386,248.36
  4. Step 4: Simplify right side
    688,054.60x = 366,748,727,419.91
  5. Step 5: Solve for x
    x = 366,748,727,419.91/688,054.60
  6. Step 6: Final answer
    x = 533,022.71

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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.