Home / 949,640.89-1,310,503.80-519,920.91

Finding the Fourth Proportional to 949,640.89, 1,310,503.80 and 519,920.91

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Solution

The fourth proportional to 949,640.89, 1,310,503.80 and 519,920.91 is: 717,490.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,640.89 : 1,310,503.80 = 519,920.91 : x
  2. Step 2: Convert to fraction form
    949,640.89/1,310,503.80 = 519,920.91/x
  3. Step 3: Cross multiply
    949,640.89x = 1,310,503.80 × 519,920.91
  4. Step 4: Simplify right side
    949,640.89x = 681,358,321,701.94
  5. Step 5: Solve for x
    x = 681,358,321,701.94/949,640.89
  6. Step 6: Final answer
    x = 717,490.50

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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.