Home / 684,442.20-1,026,779.70-211,039.32

Finding the Fourth Proportional to 684,442.20, 1,026,779.70 and 211,039.32

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Solution

The fourth proportional to 684,442.20, 1,026,779.70 and 211,039.32 is: 316,594.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,442.20 : 1,026,779.70 = 211,039.32 : x
  2. Step 2: Convert to fraction form
    684,442.20/1,026,779.70 = 211,039.32/x
  3. Step 3: Cross multiply
    684,442.20x = 1,026,779.70 × 211,039.32
  4. Step 4: Simplify right side
    684,442.20x = 216,690,889,677.80
  5. Step 5: Solve for x
    x = 216,690,889,677.80/684,442.20
  6. Step 6: Final answer
    x = 316,594.87

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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.