Home / 708,705.10-1,063,555.78-640,946.36

Finding the Fourth Proportional to 708,705.10, 1,063,555.78 and 640,946.36

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Solution

The fourth proportional to 708,705.10, 1,063,555.78 and 640,946.36 is: 961,870.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,705.10 : 1,063,555.78 = 640,946.36 : x
  2. Step 2: Convert to fraction form
    708,705.10/1,063,555.78 = 640,946.36/x
  3. Step 3: Cross multiply
    708,705.10x = 1,063,555.78 × 640,946.36
  4. Step 4: Simplify right side
    708,705.10x = 681,682,205,847.96
  5. Step 5: Solve for x
    x = 681,682,205,847.96/708,705.10
  6. Step 6: Final answer
    x = 961,870.04

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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.