Home / 638,551.22-881,207.56-348,160.38

Finding the Fourth Proportional to 638,551.22, 881,207.56 and 348,160.38

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Solution

The fourth proportional to 638,551.22, 881,207.56 and 348,160.38 is: 480,465.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,551.22 : 881,207.56 = 348,160.38 : x
  2. Step 2: Convert to fraction form
    638,551.22/881,207.56 = 348,160.38/x
  3. Step 3: Cross multiply
    638,551.22x = 881,207.56 × 348,160.38
  4. Step 4: Simplify right side
    638,551.22x = 306,801,558,948.47
  5. Step 5: Solve for x
    x = 306,801,558,948.47/638,551.22
  6. Step 6: Final answer
    x = 480,465.07

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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.