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Finding the Fourth Proportional to 461,549.28, 692,961.12 and 319,043.28

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Solution

The fourth proportional to 461,549.28, 692,961.12 and 319,043.28 is: 479,005.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,549.28 : 692,961.12 = 319,043.28 : x
  2. Step 2: Convert to fraction form
    461,549.28/692,961.12 = 319,043.28/x
  3. Step 3: Cross multiply
    461,549.28x = 692,961.12 × 319,043.28
  4. Step 4: Simplify right side
    461,549.28x = 221,084,588,637.27
  5. Step 5: Solve for x
    x = 221,084,588,637.27/461,549.28
  6. Step 6: Final answer
    x = 479,005.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.