Home / 684,158.40-1,026,237.60-310,910.40

Finding the Fourth Proportional to 684,158.40, 1,026,237.60 and 310,910.40

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Solution

The fourth proportional to 684,158.40, 1,026,237.60 and 310,910.40 is: 466,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,158.40 : 1,026,237.60 = 310,910.40 : x
  2. Step 2: Convert to fraction form
    684,158.40/1,026,237.60 = 310,910.40/x
  3. Step 3: Cross multiply
    684,158.40x = 1,026,237.60 × 310,910.40
  4. Step 4: Simplify right side
    684,158.40x = 319,067,942,711.04
  5. Step 5: Solve for x
    x = 319,067,942,711.04/684,158.40
  6. Step 6: Final answer
    x = 466,365.60

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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.