Home / 859,767.80-1,287,685.20-410,804.06

Finding the Fourth Proportional to 859,767.80, 1,287,685.20 and 410,804.06

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Solution

The fourth proportional to 859,767.80, 1,287,685.20 and 410,804.06 is: 615,266.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,767.80 : 1,287,685.20 = 410,804.06 : x
  2. Step 2: Convert to fraction form
    859,767.80/1,287,685.20 = 410,804.06/x
  3. Step 3: Cross multiply
    859,767.80x = 1,287,685.20 × 410,804.06
  4. Step 4: Simplify right side
    859,767.80x = 528,986,308,161.91
  5. Step 5: Solve for x
    x = 528,986,308,161.91/859,767.80
  6. Step 6: Final answer
    x = 615,266.48

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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.