Home / 1,420,661.56-1,960,488.24-776,065.18

Finding the Fourth Proportional to 1,420,661.56, 1,960,488.24 and 776,065.18

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Solution

The fourth proportional to 1,420,661.56, 1,960,488.24 and 776,065.18 is: 1,070,956.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,661.56 : 1,960,488.24 = 776,065.18 : x
  2. Step 2: Convert to fraction form
    1,420,661.56/1,960,488.24 = 776,065.18/x
  3. Step 3: Cross multiply
    1,420,661.56x = 1,960,488.24 × 776,065.18
  4. Step 4: Simplify right side
    1,420,661.56x = 1,521,466,658,863.48
  5. Step 5: Solve for x
    x = 1,521,466,658,863.48/1,420,661.56
  6. Step 6: Final answer
    x = 1,070,956.45

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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.