Home / 668,853.30-1,002,665.70-289,535.16

Finding the Fourth Proportional to 668,853.30, 1,002,665.70 and 289,535.16

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Solution

The fourth proportional to 668,853.30, 1,002,665.70 and 289,535.16 is: 434,036.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,853.30 : 1,002,665.70 = 289,535.16 : x
  2. Step 2: Convert to fraction form
    668,853.30/1,002,665.70 = 289,535.16/x
  3. Step 3: Cross multiply
    668,853.30x = 1,002,665.70 × 289,535.16
  4. Step 4: Simplify right side
    668,853.30x = 290,306,973,876.01
  5. Step 5: Solve for x
    x = 290,306,973,876.01/668,853.30
  6. Step 6: Final answer
    x = 434,036.84

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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.