Home / 2,479,510.74-3,421,292.40-1,391,828.16

Finding the Fourth Proportional to 2,479,510.74, 3,421,292.40 and 1,391,828.16

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Solution

The fourth proportional to 2,479,510.74, 3,421,292.40 and 1,391,828.16 is: 1,920,480.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479,510.74 : 3,421,292.40 = 1,391,828.16 : x
  2. Step 2: Convert to fraction form
    2,479,510.74/3,421,292.40 = 1,391,828.16/x
  3. Step 3: Cross multiply
    2,479,510.74x = 3,421,292.40 × 1,391,828.16
  4. Step 4: Simplify right side
    2,479,510.74x = 4,761,851,105,913.98
  5. Step 5: Solve for x
    x = 4,761,851,105,913.98/2,479,510.74
  6. Step 6: Final answer
    x = 1,920,480.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.