Home / 908,577.81-1,253,820.60-500,717.43

Finding the Fourth Proportional to 908,577.81, 1,253,820.60 and 500,717.43

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Solution

The fourth proportional to 908,577.81, 1,253,820.60 and 500,717.43 is: 690,980.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,577.81 : 1,253,820.60 = 500,717.43 : x
  2. Step 2: Convert to fraction form
    908,577.81/1,253,820.60 = 500,717.43/x
  3. Step 3: Cross multiply
    908,577.81x = 1,253,820.60 × 500,717.43
  4. Step 4: Simplify right side
    908,577.81x = 627,809,828,513.06
  5. Step 5: Solve for x
    x = 627,809,828,513.06/908,577.81
  6. Step 6: Final answer
    x = 690,980.81

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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.