Home / 921,224.25-1,271,272.41-502,123.64

Finding the Fourth Proportional to 921,224.25, 1,271,272.41 and 502,123.64

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Solution

The fourth proportional to 921,224.25, 1,271,272.41 and 502,123.64 is: 692,921.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,224.25 : 1,271,272.41 = 502,123.64 : x
  2. Step 2: Convert to fraction form
    921,224.25/1,271,272.41 = 502,123.64/x
  3. Step 3: Cross multiply
    921,224.25x = 1,271,272.41 × 502,123.64
  4. Step 4: Simplify right side
    921,224.25x = 638,335,923,584.41
  5. Step 5: Solve for x
    x = 638,335,923,584.41/921,224.25
  6. Step 6: Final answer
    x = 692,921.32

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Double scale
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1.5x scale

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.