Home / 765,611.20-1,056,533.07-426,079.45

Finding the Fourth Proportional to 765,611.20, 1,056,533.07 and 426,079.45

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Solution

The fourth proportional to 765,611.20, 1,056,533.07 and 426,079.45 is: 587,983.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,611.20 : 1,056,533.07 = 426,079.45 : x
  2. Step 2: Convert to fraction form
    765,611.20/1,056,533.07 = 426,079.45/x
  3. Step 3: Cross multiply
    765,611.20x = 1,056,533.07 × 426,079.45
  4. Step 4: Simplify right side
    765,611.20x = 450,167,029,372.41
  5. Step 5: Solve for x
    x = 450,167,029,372.41/765,611.20
  6. Step 6: Final answer
    x = 587,983.86

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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.