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Finding the Fourth Proportional to 635,966.40, 877,591.20 and 349,480.32

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Solution

The fourth proportional to 635,966.40, 877,591.20 and 349,480.32 is: 482,259.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,966.40 : 877,591.20 = 349,480.32 : x
  2. Step 2: Convert to fraction form
    635,966.40/877,591.20 = 349,480.32/x
  3. Step 3: Cross multiply
    635,966.40x = 877,591.20 × 349,480.32
  4. Step 4: Simplify right side
    635,966.40x = 306,700,853,405.18
  5. Step 5: Solve for x
    x = 306,700,853,405.18/635,966.40
  6. Step 6: Final answer
    x = 482,259.52

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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.