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Finding the Fourth Proportional to 517,875.52, 714,889.12 and 348,208

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Solution

The fourth proportional to 517,875.52, 714,889.12 and 348,208 is: 480,675.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,875.52 : 714,889.12 = 348,208 : x
  2. Step 2: Convert to fraction form
    517,875.52/714,889.12 = 348,208/x
  3. Step 3: Cross multiply
    517,875.52x = 714,889.12 × 348,208
  4. Step 4: Simplify right side
    517,875.52x = 248,930,110,696.96
  5. Step 5: Solve for x
    x = 248,930,110,696.96/517,875.52
  6. Step 6: Final answer
    x = 480,675.57

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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.