Home / 684,439.95-1,026,317.28-211,063.80

Finding the Fourth Proportional to 684,439.95, 1,026,317.28 and 211,063.80

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Solution

The fourth proportional to 684,439.95, 1,026,317.28 and 211,063.80 is: 316,490.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,439.95 : 1,026,317.28 = 211,063.80 : x
  2. Step 2: Convert to fraction form
    684,439.95/1,026,317.28 = 211,063.80/x
  3. Step 3: Cross multiply
    684,439.95x = 1,026,317.28 × 211,063.80
  4. Step 4: Simplify right side
    684,439.95x = 216,618,425,122.46
  5. Step 5: Solve for x
    x = 216,618,425,122.46/684,439.95
  6. Step 6: Final answer
    x = 316,490.04

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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.