Home / 1,078,585.49-1,488,986.86-670,818.78

Finding the Fourth Proportional to 1,078,585.49, 1,488,986.86 and 670,818.78

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Solution

The fourth proportional to 1,078,585.49, 1,488,986.86 and 670,818.78 is: 926,065.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,585.49 : 1,488,986.86 = 670,818.78 : x
  2. Step 2: Convert to fraction form
    1,078,585.49/1,488,986.86 = 670,818.78/x
  3. Step 3: Cross multiply
    1,078,585.49x = 1,488,986.86 × 670,818.78
  4. Step 4: Simplify right side
    1,078,585.49x = 998,840,347,184.18
  5. Step 5: Solve for x
    x = 998,840,347,184.18/1,078,585.49
  6. Step 6: Final answer
    x = 926,065.07

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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.