Home / 684,292.80-1,026,439.20-185,656.80

Finding the Fourth Proportional to 684,292.80, 1,026,439.20 and 185,656.80

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Solution

The fourth proportional to 684,292.80, 1,026,439.20 and 185,656.80 is: 278,485.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,292.80 : 1,026,439.20 = 185,656.80 : x
  2. Step 2: Convert to fraction form
    684,292.80/1,026,439.20 = 185,656.80/x
  3. Step 3: Cross multiply
    684,292.80x = 1,026,439.20 × 185,656.80
  4. Step 4: Simplify right side
    684,292.80x = 190,565,417,266.56
  5. Step 5: Solve for x
    x = 190,565,417,266.56/684,292.80
  6. Step 6: Final answer
    x = 278,485.20

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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.