Home / 708,702.10-1,063,551.28-640,943.36

Finding the Fourth Proportional to 708,702.10, 1,063,551.28 and 640,943.36

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Solution

The fourth proportional to 708,702.10, 1,063,551.28 and 640,943.36 is: 961,865.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,702.10 : 1,063,551.28 = 640,943.36 : x
  2. Step 2: Convert to fraction form
    708,702.10/1,063,551.28 = 640,943.36/x
  3. Step 3: Cross multiply
    708,702.10x = 1,063,551.28 × 640,943.36
  4. Step 4: Simplify right side
    708,702.10x = 681,676,130,935.50
  5. Step 5: Solve for x
    x = 681,676,130,935.50/708,702.10
  6. Step 6: Final answer
    x = 961,865.54

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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.