Home / 765,608.95-1,056,529.96-426,077.20

Finding the Fourth Proportional to 765,608.95, 1,056,529.96 and 426,077.20

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Solution

The fourth proportional to 765,608.95, 1,056,529.96 and 426,077.20 is: 587,980.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,608.95 : 1,056,529.96 = 426,077.20 : x
  2. Step 2: Convert to fraction form
    765,608.95/1,056,529.96 = 426,077.20/x
  3. Step 3: Cross multiply
    765,608.95x = 1,056,529.96 × 426,077.20
  4. Step 4: Simplify right side
    765,608.95x = 450,163,327,072.91
  5. Step 5: Solve for x
    x = 450,163,327,072.91/765,608.95
  6. Step 6: Final answer
    x = 587,980.75

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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.