Home / 908,478.87-1,253,684.31-500,618.36

Finding the Fourth Proportional to 908,478.87, 1,253,684.31 and 500,618.36

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Solution

The fourth proportional to 908,478.87, 1,253,684.31 and 500,618.36 is: 690,844.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,478.87 : 1,253,684.31 = 500,618.36 : x
  2. Step 2: Convert to fraction form
    908,478.87/1,253,684.31 = 500,618.36/x
  3. Step 3: Cross multiply
    908,478.87x = 1,253,684.31 × 500,618.36
  4. Step 4: Simplify right side
    908,478.87x = 627,617,376,961.51
  5. Step 5: Solve for x
    x = 627,617,376,961.51/908,478.87
  6. Step 6: Final answer
    x = 690,844.22

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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.