Home / 770,730.40-1,158,860.40-649,079.20

Finding the Fourth Proportional to 770,730.40, 1,158,860.40 and 649,079.20

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Solution

The fourth proportional to 770,730.40, 1,158,860.40 and 649,079.20 is: 975,947.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,730.40 : 1,158,860.40 = 649,079.20 : x
  2. Step 2: Convert to fraction form
    770,730.40/1,158,860.40 = 649,079.20/x
  3. Step 3: Cross multiply
    770,730.40x = 1,158,860.40 × 649,079.20
  4. Step 4: Simplify right side
    770,730.40x = 752,192,181,343.68
  5. Step 5: Solve for x
    x = 752,192,181,343.68/770,730.40
  6. Step 6: Final answer
    x = 975,947.21

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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.