Home / 917,270.10-1,375,905.15-492,117.30

Finding the Fourth Proportional to 917,270.10, 1,375,905.15 and 492,117.30

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Solution

The fourth proportional to 917,270.10, 1,375,905.15 and 492,117.30 is: 738,175.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,270.10 : 1,375,905.15 = 492,117.30 : x
  2. Step 2: Convert to fraction form
    917,270.10/1,375,905.15 = 492,117.30/x
  3. Step 3: Cross multiply
    917,270.10x = 1,375,905.15 × 492,117.30
  4. Step 4: Simplify right side
    917,270.10x = 677,106,727,474.10
  5. Step 5: Solve for x
    x = 677,106,727,474.10/917,270.10
  6. Step 6: Final answer
    x = 738,175.95

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Double scale
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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.