Home / 688,231.49-949,911.23-382,412.95

Finding the Fourth Proportional to 688,231.49, 949,911.23 and 382,412.95

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Solution

The fourth proportional to 688,231.49, 949,911.23 and 382,412.95 is: 527,814.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,231.49 : 949,911.23 = 382,412.95 : x
  2. Step 2: Convert to fraction form
    688,231.49/949,911.23 = 382,412.95/x
  3. Step 3: Cross multiply
    688,231.49x = 949,911.23 × 382,412.95
  4. Step 4: Simplify right side
    688,231.49x = 363,258,354,283.68
  5. Step 5: Solve for x
    x = 363,258,354,283.68/688,231.49
  6. Step 6: Final answer
    x = 527,814.21

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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.