Home / 694,681.80-1,042,022.70-410,080.20

Finding the Fourth Proportional to 694,681.80, 1,042,022.70 and 410,080.20

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Solution

The fourth proportional to 694,681.80, 1,042,022.70 and 410,080.20 is: 615,120.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,681.80 : 1,042,022.70 = 410,080.20 : x
  2. Step 2: Convert to fraction form
    694,681.80/1,042,022.70 = 410,080.20/x
  3. Step 3: Cross multiply
    694,681.80x = 1,042,022.70 × 410,080.20
  4. Step 4: Simplify right side
    694,681.80x = 427,312,877,220.54
  5. Step 5: Solve for x
    x = 427,312,877,220.54/694,681.80
  6. Step 6: Final answer
    x = 615,120.30

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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.