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Finding the Fourth Proportional to 647,191.92, 893,129.02 and 360,730.20

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Solution

The fourth proportional to 647,191.92, 893,129.02 and 360,730.20 is: 497,810.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,191.92 : 893,129.02 = 360,730.20 : x
  2. Step 2: Convert to fraction form
    647,191.92/893,129.02 = 360,730.20/x
  3. Step 3: Cross multiply
    647,191.92x = 893,129.02 × 360,730.20
  4. Step 4: Simplify right side
    647,191.92x = 322,178,610,010.40
  5. Step 5: Solve for x
    x = 322,178,610,010.40/647,191.92
  6. Step 6: Final answer
    x = 497,810.00

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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.