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Finding the Fourth Proportional to 515,269.66, 772,530.80 and 346,371.06

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Solution

The fourth proportional to 515,269.66, 772,530.80 and 346,371.06 is: 519,305.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,269.66 : 772,530.80 = 346,371.06 : x
  2. Step 2: Convert to fraction form
    515,269.66/772,530.80 = 346,371.06/x
  3. Step 3: Cross multiply
    515,269.66x = 772,530.80 × 346,371.06
  4. Step 4: Simplify right side
    515,269.66x = 267,582,312,078.65
  5. Step 5: Solve for x
    x = 267,582,312,078.65/515,269.66
  6. Step 6: Final answer
    x = 519,305.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.