Home / 688,026.74-949,489.62-382,131.45

Finding the Fourth Proportional to 688,026.74, 949,489.62 and 382,131.45

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Solution

The fourth proportional to 688,026.74, 949,489.62 and 382,131.45 is: 527,348.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,026.74 : 949,489.62 = 382,131.45 : x
  2. Step 2: Convert to fraction form
    688,026.74/949,489.62 = 382,131.45/x
  3. Step 3: Cross multiply
    688,026.74x = 949,489.62 × 382,131.45
  4. Step 4: Simplify right side
    688,026.74x = 362,829,845,250.55
  5. Step 5: Solve for x
    x = 362,829,845,250.55/688,026.74
  6. Step 6: Final answer
    x = 527,348.47

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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.