Home / 486,766.26-671,301.14-405,364.10

Finding the Fourth Proportional to 486,766.26, 671,301.14 and 405,364.10

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Solution

The fourth proportional to 486,766.26, 671,301.14 and 405,364.10 is: 559,039.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,766.26 : 671,301.14 = 405,364.10 : x
  2. Step 2: Convert to fraction form
    486,766.26/671,301.14 = 405,364.10/x
  3. Step 3: Cross multiply
    486,766.26x = 671,301.14 × 405,364.10
  4. Step 4: Simplify right side
    486,766.26x = 272,121,377,061.75
  5. Step 5: Solve for x
    x = 272,121,377,061.75/486,766.26
  6. Step 6: Final answer
    x = 559,039.11

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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.