Home / 913,963.32-1,261,224.54-506,053.80

Finding the Fourth Proportional to 913,963.32, 1,261,224.54 and 506,053.80

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Solution

The fourth proportional to 913,963.32, 1,261,224.54 and 506,053.80 is: 698,329.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,963.32 : 1,261,224.54 = 506,053.80 : x
  2. Step 2: Convert to fraction form
    913,963.32/1,261,224.54 = 506,053.80/x
  3. Step 3: Cross multiply
    913,963.32x = 1,261,224.54 × 506,053.80
  4. Step 4: Simplify right side
    913,963.32x = 638,247,471,120.25
  5. Step 5: Solve for x
    x = 638,247,471,120.25/913,963.32
  6. Step 6: Final answer
    x = 698,329.42

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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.