Home / 684,079.40-1,026,119.10-185,443.40

Finding the Fourth Proportional to 684,079.40, 1,026,119.10 and 185,443.40

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Solution

The fourth proportional to 684,079.40, 1,026,119.10 and 185,443.40 is: 278,165.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,079.40 : 1,026,119.10 = 185,443.40 : x
  2. Step 2: Convert to fraction form
    684,079.40/1,026,119.10 = 185,443.40/x
  3. Step 3: Cross multiply
    684,079.40x = 1,026,119.10 × 185,443.40
  4. Step 4: Simplify right side
    684,079.40x = 190,287,014,708.94
  5. Step 5: Solve for x
    x = 190,287,014,708.94/684,079.40
  6. Step 6: Final answer
    x = 278,165.10

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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.