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Finding the Fourth Proportional to 653,228.71, 979,461.70 and 253,402.28

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Solution

The fourth proportional to 653,228.71, 979,461.70 and 253,402.28 is: 379,955.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,228.71 : 979,461.70 = 253,402.28 : x
  2. Step 2: Convert to fraction form
    653,228.71/979,461.70 = 253,402.28/x
  3. Step 3: Cross multiply
    653,228.71x = 979,461.70 × 253,402.28
  4. Step 4: Simplify right side
    653,228.71x = 248,197,827,952.68
  5. Step 5: Solve for x
    x = 248,197,827,952.68/653,228.71
  6. Step 6: Final answer
    x = 379,955.48

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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.