Home / 662,015.43-913,685.27-403,948.76

Finding the Fourth Proportional to 662,015.43, 913,685.27 and 403,948.76

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Solution

The fourth proportional to 662,015.43, 913,685.27 and 403,948.76 is: 557,512.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,015.43 : 913,685.27 = 403,948.76 : x
  2. Step 2: Convert to fraction form
    662,015.43/913,685.27 = 403,948.76/x
  3. Step 3: Cross multiply
    662,015.43x = 913,685.27 × 403,948.76
  4. Step 4: Simplify right side
    662,015.43x = 369,082,025,258.60
  5. Step 5: Solve for x
    x = 369,082,025,258.60/662,015.43
  6. Step 6: Final answer
    x = 557,512.72

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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.