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Finding the Fourth Proportional to 584,340.30, 806,390.42 and 329,715.18

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Solution

The fourth proportional to 584,340.30, 806,390.42 and 329,715.18 is: 455,007.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,340.30 : 806,390.42 = 329,715.18 : x
  2. Step 2: Convert to fraction form
    584,340.30/806,390.42 = 329,715.18/x
  3. Step 3: Cross multiply
    584,340.30x = 806,390.42 × 329,715.18
  4. Step 4: Simplify right side
    584,340.30x = 265,879,160,832.00
  5. Step 5: Solve for x
    x = 265,879,160,832.00/584,340.30
  6. Step 6: Final answer
    x = 455,007.40

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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.