Home / 659,811.98-989,700.65-210,560.26

Finding the Fourth Proportional to 659,811.98, 989,700.65 and 210,560.26

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Solution

The fourth proportional to 659,811.98, 989,700.65 and 210,560.26 is: 315,834.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,811.98 : 989,700.65 = 210,560.26 : x
  2. Step 2: Convert to fraction form
    659,811.98/989,700.65 = 210,560.26/x
  3. Step 3: Cross multiply
    659,811.98x = 989,700.65 × 210,560.26
  4. Step 4: Simplify right side
    659,811.98x = 208,391,625,896.61
  5. Step 5: Solve for x
    x = 208,391,625,896.61/659,811.98
  6. Step 6: Final answer
    x = 315,834.86

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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.