Home / 1,290,487.95-1,935,990.32-722,676.53

Finding the Fourth Proportional to 1,290,487.95, 1,935,990.32 and 722,676.53

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Solution

The fourth proportional to 1,290,487.95, 1,935,990.32 and 722,676.53 is: 1,084,159.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,487.95 : 1,935,990.32 = 722,676.53 : x
  2. Step 2: Convert to fraction form
    1,290,487.95/1,935,990.32 = 722,676.53/x
  3. Step 3: Cross multiply
    1,290,487.95x = 1,935,990.32 × 722,676.53
  4. Step 4: Simplify right side
    1,290,487.95x = 1,399,094,767,797.78
  5. Step 5: Solve for x
    x = 1,399,094,767,797.78/1,290,487.95
  6. Step 6: Final answer
    x = 1,084,159.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.