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Finding the Fourth Proportional to 423,607.61, 635,411.43 and 199,123.00

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Solution

The fourth proportional to 423,607.61, 635,411.43 and 199,123.00 is: 298,684.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,607.61 : 635,411.43 = 199,123.00 : x
  2. Step 2: Convert to fraction form
    423,607.61/635,411.43 = 199,123.00/x
  3. Step 3: Cross multiply
    423,607.61x = 635,411.43 × 199,123.00
  4. Step 4: Simplify right side
    423,607.61x = 126,525,028,587.36
  5. Step 5: Solve for x
    x = 126,525,028,587.36/423,607.61
  6. Step 6: Final answer
    x = 298,684.50

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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.