Home / 891,143.76-1,229,856.14-488,813.52

Finding the Fourth Proportional to 891,143.76, 1,229,856.14 and 488,813.52

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Solution

The fourth proportional to 891,143.76, 1,229,856.14 and 488,813.52 is: 674,605.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,143.76 : 1,229,856.14 = 488,813.52 : x
  2. Step 2: Convert to fraction form
    891,143.76/1,229,856.14 = 488,813.52/x
  3. Step 3: Cross multiply
    891,143.76x = 1,229,856.14 × 488,813.52
  4. Step 4: Simplify right side
    891,143.76x = 601,170,308,887.01
  5. Step 5: Solve for x
    x = 601,170,308,887.01/891,143.76
  6. Step 6: Final answer
    x = 674,605.31

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1.5x scale

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.