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Finding the Fourth Proportional to 976,543, 1,464,803.55 and 345,309.19

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Solution

The fourth proportional to 976,543, 1,464,803.55 and 345,309.19 is: 517,959.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,543 : 1,464,803.55 = 345,309.19 : x
  2. Step 2: Convert to fraction form
    976,543/1,464,803.55 = 345,309.19/x
  3. Step 3: Cross multiply
    976,543x = 1,464,803.55 × 345,309.19
  4. Step 4: Simplify right side
    976,543x = 505,810,127,359.63
  5. Step 5: Solve for x
    x = 505,810,127,359.63/976,543
  6. Step 6: Final answer
    x = 517,959.91

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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.