Home / 638,572.28-881,269.08-352,091.48

Finding the Fourth Proportional to 638,572.28, 881,269.08 and 352,091.48

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Solution

The fourth proportional to 638,572.28, 881,269.08 and 352,091.48 is: 485,907.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,572.28 : 881,269.08 = 352,091.48 : x
  2. Step 2: Convert to fraction form
    638,572.28/881,269.08 = 352,091.48/x
  3. Step 3: Cross multiply
    638,572.28x = 881,269.08 × 352,091.48
  4. Step 4: Simplify right side
    638,572.28x = 310,287,334,655.44
  5. Step 5: Solve for x
    x = 310,287,334,655.44/638,572.28
  6. Step 6: Final answer
    x = 485,907.93

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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.