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Finding the Fourth Proportional to 647,206.55, 893,146.02 and 360,720.48

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Solution

The fourth proportional to 647,206.55, 893,146.02 and 360,720.48 is: 497,794.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,206.55 : 893,146.02 = 360,720.48 : x
  2. Step 2: Convert to fraction form
    647,206.55/893,146.02 = 360,720.48/x
  3. Step 3: Cross multiply
    647,206.55x = 893,146.02 × 360,720.48
  4. Step 4: Simplify right side
    647,206.55x = 322,176,061,044.49
  5. Step 5: Solve for x
    x = 322,176,061,044.49/647,206.55
  6. Step 6: Final answer
    x = 497,794.81

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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.