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Finding the Fourth Proportional to 642,253.74, 885,469.95 and 552,573.03

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Solution

The fourth proportional to 642,253.74, 885,469.95 and 552,573.03 is: 761,827.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,253.74 : 885,469.95 = 552,573.03 : x
  2. Step 2: Convert to fraction form
    642,253.74/885,469.95 = 552,573.03/x
  3. Step 3: Cross multiply
    642,253.74x = 885,469.95 × 552,573.03
  4. Step 4: Simplify right side
    642,253.74x = 489,286,813,245.45
  5. Step 5: Solve for x
    x = 489,286,813,245.45/642,253.74
  6. Step 6: Final answer
    x = 761,827.89

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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.