Home / 659,927.40-989,490.15-260,107.35

Finding the Fourth Proportional to 659,927.40, 989,490.15 and 260,107.35

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Solution

The fourth proportional to 659,927.40, 989,490.15 and 260,107.35 is: 390,002.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,927.40 : 989,490.15 = 260,107.35 : x
  2. Step 2: Convert to fraction form
    659,927.40/989,490.15 = 260,107.35/x
  3. Step 3: Cross multiply
    659,927.40x = 989,490.15 × 260,107.35
  4. Step 4: Simplify right side
    659,927.40x = 257,373,660,767.60
  5. Step 5: Solve for x
    x = 257,373,660,767.60/659,927.40
  6. Step 6: Final answer
    x = 390,002.99

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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.