Home / 684,108.06-1,026,162.09-414,290.58

Finding the Fourth Proportional to 684,108.06, 1,026,162.09 and 414,290.58

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Solution

The fourth proportional to 684,108.06, 1,026,162.09 and 414,290.58 is: 621,435.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,108.06 : 1,026,162.09 = 414,290.58 : x
  2. Step 2: Convert to fraction form
    684,108.06/1,026,162.09 = 414,290.58/x
  3. Step 3: Cross multiply
    684,108.06x = 1,026,162.09 × 414,290.58
  4. Step 4: Simplify right side
    684,108.06x = 425,129,287,440.11
  5. Step 5: Solve for x
    x = 425,129,287,440.11/684,108.06
  6. Step 6: Final answer
    x = 621,435.87

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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.