Home / 913,636.19-1,260,820.82-494,531.87

Finding the Fourth Proportional to 913,636.19, 1,260,820.82 and 494,531.87

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Solution

The fourth proportional to 913,636.19, 1,260,820.82 and 494,531.87 is: 682,455.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,636.19 : 1,260,820.82 = 494,531.87 : x
  2. Step 2: Convert to fraction form
    913,636.19/1,260,820.82 = 494,531.87/x
  3. Step 3: Cross multiply
    913,636.19x = 1,260,820.82 × 494,531.87
  4. Step 4: Simplify right side
    913,636.19x = 623,516,072,781.76
  5. Step 5: Solve for x
    x = 623,516,072,781.76/913,636.19
  6. Step 6: Final answer
    x = 682,455.53

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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.