Home / 684,311.16-1,026,400.77-210,869.40

Finding the Fourth Proportional to 684,311.16, 1,026,400.77 and 210,869.40

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Solution

The fourth proportional to 684,311.16, 1,026,400.77 and 210,869.40 is: 316,283.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,311.16 : 1,026,400.77 = 210,869.40 : x
  2. Step 2: Convert to fraction form
    684,311.16/1,026,400.77 = 210,869.40/x
  3. Step 3: Cross multiply
    684,311.16x = 1,026,400.77 × 210,869.40
  4. Step 4: Simplify right side
    684,311.16x = 216,436,514,529.44
  5. Step 5: Solve for x
    x = 216,436,514,529.44/684,311.16
  6. Step 6: Final answer
    x = 316,283.77

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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.