Home / 765,611.70-1,056,533.76-426,079.95

Finding the Fourth Proportional to 765,611.70, 1,056,533.76 and 426,079.95

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Solution

The fourth proportional to 765,611.70, 1,056,533.76 and 426,079.95 is: 587,984.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,611.70 : 1,056,533.76 = 426,079.95 : x
  2. Step 2: Convert to fraction form
    765,611.70/1,056,533.76 = 426,079.95/x
  3. Step 3: Cross multiply
    765,611.70x = 1,056,533.76 × 426,079.95
  4. Step 4: Simplify right side
    765,611.70x = 450,167,851,634.11
  5. Step 5: Solve for x
    x = 450,167,851,634.11/765,611.70
  6. Step 6: Final answer
    x = 587,984.55

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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.