Home / 908,934.65-1,363,254.31-429,161.53

Finding the Fourth Proportional to 908,934.65, 1,363,254.31 and 429,161.53

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Solution

The fourth proportional to 908,934.65, 1,363,254.31 and 429,161.53 is: 643,672.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,934.65 : 1,363,254.31 = 429,161.53 : x
  2. Step 2: Convert to fraction form
    908,934.65/1,363,254.31 = 429,161.53/x
  3. Step 3: Cross multiply
    908,934.65x = 1,363,254.31 × 429,161.53
  4. Step 4: Simplify right side
    908,934.65x = 585,056,305,458.69
  5. Step 5: Solve for x
    x = 585,056,305,458.69/908,934.65
  6. Step 6: Final answer
    x = 643,672.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.