Home / 778,467.40-1,167,701.10-645,497.80

Finding the Fourth Proportional to 778,467.40, 1,167,701.10 and 645,497.80

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Solution

The fourth proportional to 778,467.40, 1,167,701.10 and 645,497.80 is: 968,246.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,467.40 : 1,167,701.10 = 645,497.80 : x
  2. Step 2: Convert to fraction form
    778,467.40/1,167,701.10 = 645,497.80/x
  3. Step 3: Cross multiply
    778,467.40x = 1,167,701.10 × 645,497.80
  4. Step 4: Simplify right side
    778,467.40x = 753,748,491,107.58
  5. Step 5: Solve for x
    x = 753,748,491,107.58/778,467.40
  6. Step 6: Final answer
    x = 968,246.70

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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.