Home / 688,326.30-949,901.49-382,422.42

Finding the Fourth Proportional to 688,326.30, 949,901.49 and 382,422.42

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Solution

The fourth proportional to 688,326.30, 949,901.49 and 382,422.42 is: 527,749.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,326.30 : 949,901.49 = 382,422.42 : x
  2. Step 2: Convert to fraction form
    688,326.30/949,901.49 = 382,422.42/x
  3. Step 3: Cross multiply
    688,326.30x = 949,901.49 × 382,422.42
  4. Step 4: Simplify right side
    688,326.30x = 363,263,626,567.41
  5. Step 5: Solve for x
    x = 363,263,626,567.41/688,326.30
  6. Step 6: Final answer
    x = 527,749.16

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1.5x scale

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.