Home / 902,370.25-1,245,270.95-499,962.25

Finding the Fourth Proportional to 902,370.25, 1,245,270.95 and 499,962.25

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Solution

The fourth proportional to 902,370.25, 1,245,270.95 and 499,962.25 is: 689,947.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,370.25 : 1,245,270.95 = 499,962.25 : x
  2. Step 2: Convert to fraction form
    902,370.25/1,245,270.95 = 499,962.25/x
  3. Step 3: Cross multiply
    902,370.25x = 1,245,270.95 × 499,962.25
  4. Step 4: Simplify right side
    902,370.25x = 622,588,463,521.83
  5. Step 5: Solve for x
    x = 622,588,463,521.83/902,370.25
  6. Step 6: Final answer
    x = 689,947.91

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Double scale
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Similar ratio
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1.5x scale

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.