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Finding the Fourth Proportional to 522,696.60, 721,541.50 and 353,160.36

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Solution

The fourth proportional to 522,696.60, 721,541.50 and 353,160.36 is: 487,510.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,696.60 : 721,541.50 = 353,160.36 : x
  2. Step 2: Convert to fraction form
    522,696.60/721,541.50 = 353,160.36/x
  3. Step 3: Cross multiply
    522,696.60x = 721,541.50 × 353,160.36
  4. Step 4: Simplify right side
    522,696.60x = 254,819,855,894.94
  5. Step 5: Solve for x
    x = 254,819,855,894.94/522,696.60
  6. Step 6: Final answer
    x = 487,510.07

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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.