Home / 668,005.20-1,001,758.86-268,511.31

Finding the Fourth Proportional to 668,005.20, 1,001,758.86 and 268,511.31

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Solution

The fourth proportional to 668,005.20, 1,001,758.86 and 268,511.31 is: 402,666.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,005.20 : 1,001,758.86 = 268,511.31 : x
  2. Step 2: Convert to fraction form
    668,005.20/1,001,758.86 = 268,511.31/x
  3. Step 3: Cross multiply
    668,005.20x = 1,001,758.86 × 268,511.31
  4. Step 4: Simplify right side
    668,005.20x = 268,983,583,802.71
  5. Step 5: Solve for x
    x = 268,983,583,802.71/668,005.20
  6. Step 6: Final answer
    x = 402,666.90

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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.