Home / 781,013.80-1,077,784.78-441,482.06

Finding the Fourth Proportional to 781,013.80, 1,077,784.78 and 441,482.06

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Solution

The fourth proportional to 781,013.80, 1,077,784.78 and 441,482.06 is: 609,237.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,013.80 : 1,077,784.78 = 441,482.06 : x
  2. Step 2: Convert to fraction form
    781,013.80/1,077,784.78 = 441,482.06/x
  3. Step 3: Cross multiply
    781,013.80x = 1,077,784.78 × 441,482.06
  4. Step 4: Simplify right side
    781,013.80x = 475,822,644,911.05
  5. Step 5: Solve for x
    x = 475,822,644,911.05/781,013.80
  6. Step 6: Final answer
    x = 609,237.18

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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.