Home / 780,687.90-1,077,289.96-474,722.04

Finding the Fourth Proportional to 780,687.90, 1,077,289.96 and 474,722.04

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Solution

The fourth proportional to 780,687.90, 1,077,289.96 and 474,722.04 is: 655,080.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,687.90 : 1,077,289.96 = 474,722.04 : x
  2. Step 2: Convert to fraction form
    780,687.90/1,077,289.96 = 474,722.04/x
  3. Step 3: Cross multiply
    780,687.90x = 1,077,289.96 × 474,722.04
  4. Step 4: Simplify right side
    780,687.90x = 511,413,287,482.72
  5. Step 5: Solve for x
    x = 511,413,287,482.72/780,687.90
  6. Step 6: Final answer
    x = 655,080.33

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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.