Home / 688,378.64-949,961.52-382,483.17

Finding the Fourth Proportional to 688,378.64, 949,961.52 and 382,483.17

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Solution

The fourth proportional to 688,378.64, 949,961.52 and 382,483.17 is: 527,826.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,378.64 : 949,961.52 = 382,483.17 : x
  2. Step 2: Convert to fraction form
    688,378.64/949,961.52 = 382,483.17/x
  3. Step 3: Cross multiply
    688,378.64x = 949,961.52 × 382,483.17
  4. Step 4: Simplify right side
    688,378.64x = 363,344,293,547.62
  5. Step 5: Solve for x
    x = 363,344,293,547.62/688,378.64
  6. Step 6: Final answer
    x = 527,826.22

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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.