Home / 1,272,471.34-1,908,690.18-312,935.22

Finding the Fourth Proportional to 1,272,471.34, 1,908,690.18 and 312,935.22

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Solution

The fourth proportional to 1,272,471.34, 1,908,690.18 and 312,935.22 is: 469,398.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,471.34 : 1,908,690.18 = 312,935.22 : x
  2. Step 2: Convert to fraction form
    1,272,471.34/1,908,690.18 = 312,935.22/x
  3. Step 3: Cross multiply
    1,272,471.34x = 1,908,690.18 × 312,935.22
  4. Step 4: Simplify right side
    1,272,471.34x = 597,296,381,390.14
  5. Step 5: Solve for x
    x = 597,296,381,390.14/1,272,471.34
  6. Step 6: Final answer
    x = 469,398.69

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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.