Home / 784,887.80-1,177,331.70-774,390.20

Finding the Fourth Proportional to 784,887.80, 1,177,331.70 and 774,390.20

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Solution

The fourth proportional to 784,887.80, 1,177,331.70 and 774,390.20 is: 1,161,585.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,887.80 : 1,177,331.70 = 774,390.20 : x
  2. Step 2: Convert to fraction form
    784,887.80/1,177,331.70 = 774,390.20/x
  3. Step 3: Cross multiply
    784,887.80x = 1,177,331.70 × 774,390.20
  4. Step 4: Simplify right side
    784,887.80x = 911,714,130,629.34
  5. Step 5: Solve for x
    x = 911,714,130,629.34/784,887.80
  6. Step 6: Final answer
    x = 1,161,585.30

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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.