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Finding the Fourth Proportional to 553,425.71, 829,853.60 and 253,649.57

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Solution

The fourth proportional to 553,425.71, 829,853.60 and 253,649.57 is: 380,343.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,425.71 : 829,853.60 = 253,649.57 : x
  2. Step 2: Convert to fraction form
    553,425.71/829,853.60 = 253,649.57/x
  3. Step 3: Cross multiply
    553,425.71x = 829,853.60 × 253,649.57
  4. Step 4: Simplify right side
    553,425.71x = 210,492,003,385.44
  5. Step 5: Solve for x
    x = 210,492,003,385.44/553,425.71
  6. Step 6: Final answer
    x = 380,343.74

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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.