Home / 858,999.61-1,287,280.77-632,584.36

Finding the Fourth Proportional to 858,999.61, 1,287,280.77 and 632,584.36

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Solution

The fourth proportional to 858,999.61, 1,287,280.77 and 632,584.36 is: 947,979.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,999.61 : 1,287,280.77 = 632,584.36 : x
  2. Step 2: Convert to fraction form
    858,999.61/1,287,280.77 = 632,584.36/x
  3. Step 3: Cross multiply
    858,999.61x = 1,287,280.77 × 632,584.36
  4. Step 4: Simplify right side
    858,999.61x = 814,313,678,536.73
  5. Step 5: Solve for x
    x = 814,313,678,536.73/858,999.61
  6. Step 6: Final answer
    x = 947,979.10

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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.