Home / 781,004.61-1,170,169.59-426,267.54

Finding the Fourth Proportional to 781,004.61, 1,170,169.59 and 426,267.54

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Solution

The fourth proportional to 781,004.61, 1,170,169.59 and 426,267.54 is: 638,671.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,004.61 : 1,170,169.59 = 426,267.54 : x
  2. Step 2: Convert to fraction form
    781,004.61/1,170,169.59 = 426,267.54/x
  3. Step 3: Cross multiply
    781,004.61x = 1,170,169.59 × 426,267.54
  4. Step 4: Simplify right side
    781,004.61x = 498,805,312,512.11
  5. Step 5: Solve for x
    x = 498,805,312,512.11/781,004.61
  6. Step 6: Final answer
    x = 638,671.41

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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.