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Finding the Fourth Proportional to 653,248.76, 979,491.80 and 253,422.36

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Solution

The fourth proportional to 653,248.76, 979,491.80 and 253,422.36 is: 379,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,248.76 : 979,491.80 = 253,422.36 : x
  2. Step 2: Convert to fraction form
    653,248.76/979,491.80 = 253,422.36/x
  3. Step 3: Cross multiply
    653,248.76x = 979,491.80 × 253,422.36
  4. Step 4: Simplify right side
    653,248.76x = 248,225,123,556.65
  5. Step 5: Solve for x
    x = 248,225,123,556.65/653,248.76
  6. Step 6: Final answer
    x = 379,985.60

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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.