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Finding the Fourth Proportional to 646,031.64, 891,553.02 and 359,570.04

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Solution

The fourth proportional to 646,031.64, 891,553.02 and 359,570.04 is: 496,222.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,031.64 : 891,553.02 = 359,570.04 : x
  2. Step 2: Convert to fraction form
    646,031.64/891,553.02 = 359,570.04/x
  3. Step 3: Cross multiply
    646,031.64x = 891,553.02 × 359,570.04
  4. Step 4: Simplify right side
    646,031.64x = 320,575,755,063.52
  5. Step 5: Solve for x
    x = 320,575,755,063.52/646,031.64
  6. Step 6: Final answer
    x = 496,222.99

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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.