Home / 946,726.10-1,420,101.71-315,640.12

Finding the Fourth Proportional to 946,726.10, 1,420,101.71 and 315,640.12

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Solution

The fourth proportional to 946,726.10, 1,420,101.71 and 315,640.12 is: 473,464.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,726.10 : 1,420,101.71 = 315,640.12 : x
  2. Step 2: Convert to fraction form
    946,726.10/1,420,101.71 = 315,640.12/x
  3. Step 3: Cross multiply
    946,726.10x = 1,420,101.71 × 315,640.12
  4. Step 4: Simplify right side
    946,726.10x = 448,241,074,156.61
  5. Step 5: Solve for x
    x = 448,241,074,156.61/946,726.10
  6. Step 6: Final answer
    x = 473,464.37

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.