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Finding the Fourth Proportional to 460,775.28, 635,847.36 and 256,848.40

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Solution

The fourth proportional to 460,775.28, 635,847.36 and 256,848.40 is: 354,438.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,775.28 : 635,847.36 = 256,848.40 : x
  2. Step 2: Convert to fraction form
    460,775.28/635,847.36 = 256,848.40/x
  3. Step 3: Cross multiply
    460,775.28x = 635,847.36 × 256,848.40
  4. Step 4: Simplify right side
    460,775.28x = 163,316,377,060.22
  5. Step 5: Solve for x
    x = 163,316,377,060.22/460,775.28
  6. Step 6: Final answer
    x = 354,438.24

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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.