Home / 910,685.92-1,256,739.76-502,787.68

Finding the Fourth Proportional to 910,685.92, 1,256,739.76 and 502,787.68

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Solution

The fourth proportional to 910,685.92, 1,256,739.76 and 502,787.68 is: 693,843.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,685.92 : 1,256,739.76 = 502,787.68 : x
  2. Step 2: Convert to fraction form
    910,685.92/1,256,739.76 = 502,787.68/x
  3. Step 3: Cross multiply
    910,685.92x = 1,256,739.76 × 502,787.68
  4. Step 4: Simplify right side
    910,685.92x = 631,873,268,294.16
  5. Step 5: Solve for x
    x = 631,873,268,294.16/910,685.92
  6. Step 6: Final answer
    x = 693,843.24

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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.