Home / 913,920.67-1,261,122.97-506,007.61

Finding the Fourth Proportional to 913,920.67, 1,261,122.97 and 506,007.61

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Solution

The fourth proportional to 913,920.67, 1,261,122.97 and 506,007.61 is: 698,242.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,920.67 : 1,261,122.97 = 506,007.61 : x
  2. Step 2: Convert to fraction form
    913,920.67/1,261,122.97 = 506,007.61/x
  3. Step 3: Cross multiply
    913,920.67x = 1,261,122.97 × 506,007.61
  4. Step 4: Simplify right side
    913,920.67x = 638,137,816,496.74
  5. Step 5: Solve for x
    x = 638,137,816,496.74/913,920.67
  6. Step 6: Final answer
    x = 698,242.02

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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.