Home / 1,405,669.95-2,108,486.16-340,721.10

Finding the Fourth Proportional to 1,405,669.95, 2,108,486.16 and 340,721.10

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Solution

The fourth proportional to 1,405,669.95, 2,108,486.16 and 340,721.10 is: 511,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,669.95 : 2,108,486.16 = 340,721.10 : x
  2. Step 2: Convert to fraction form
    1,405,669.95/2,108,486.16 = 340,721.10/x
  3. Step 3: Cross multiply
    1,405,669.95x = 2,108,486.16 × 340,721.10
  4. Step 4: Simplify right side
    1,405,669.95x = 718,405,723,769.98
  5. Step 5: Solve for x
    x = 718,405,723,769.98/1,405,669.95
  6. Step 6: Final answer
    x = 511,077.10

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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.