Home / 668,901.65-1,003,505.72-289,885.95

Finding the Fourth Proportional to 668,901.65, 1,003,505.72 and 289,885.95

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Solution

The fourth proportional to 668,901.65, 1,003,505.72 and 289,885.95 is: 434,895.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,901.65 : 1,003,505.72 = 289,885.95 : x
  2. Step 2: Convert to fraction form
    668,901.65/1,003,505.72 = 289,885.95/x
  3. Step 3: Cross multiply
    668,901.65x = 1,003,505.72 × 289,885.95
  4. Step 4: Simplify right side
    668,901.65x = 290,902,207,523.20
  5. Step 5: Solve for x
    x = 290,902,207,523.20/668,901.65
  6. Step 6: Final answer
    x = 434,895.34

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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.