Home / 1,240,510.13-1,861,138.74-387,547.33

Finding the Fourth Proportional to 1,240,510.13, 1,861,138.74 and 387,547.33

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Solution

The fourth proportional to 1,240,510.13, 1,861,138.74 and 387,547.33 is: 581,437.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,510.13 : 1,861,138.74 = 387,547.33 : x
  2. Step 2: Convert to fraction form
    1,240,510.13/1,861,138.74 = 387,547.33/x
  3. Step 3: Cross multiply
    1,240,510.13x = 1,861,138.74 × 387,547.33
  4. Step 4: Simplify right side
    1,240,510.13x = 721,279,349,446.56
  5. Step 5: Solve for x
    x = 721,279,349,446.56/1,240,510.13
  6. Step 6: Final answer
    x = 581,437.69

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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.