Home / 908,115.48-1,252,916.42-515,584.22

Finding the Fourth Proportional to 908,115.48, 1,252,916.42 and 515,584.22

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Solution

The fourth proportional to 908,115.48, 1,252,916.42 and 515,584.22 is: 711,345.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,115.48 : 1,252,916.42 = 515,584.22 : x
  2. Step 2: Convert to fraction form
    908,115.48/1,252,916.42 = 515,584.22/x
  3. Step 3: Cross multiply
    908,115.48x = 1,252,916.42 × 515,584.22
  4. Step 4: Simplify right side
    908,115.48x = 645,983,926,288.39
  5. Step 5: Solve for x
    x = 645,983,926,288.39/908,115.48
  6. Step 6: Final answer
    x = 711,345.57

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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.