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Finding the Fourth Proportional to 635,200.40, 953,491.80 and 355,264.40

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Solution

The fourth proportional to 635,200.40, 953,491.80 and 355,264.40 is: 533,283.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,200.40 : 953,491.80 = 355,264.40 : x
  2. Step 2: Convert to fraction form
    635,200.40/953,491.80 = 355,264.40/x
  3. Step 3: Cross multiply
    635,200.40x = 953,491.80 × 355,264.40
  4. Step 4: Simplify right side
    635,200.40x = 338,741,692,231.92
  5. Step 5: Solve for x
    x = 338,741,692,231.92/635,200.40
  6. Step 6: Final answer
    x = 533,283.18

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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.