Home / 770,656.80-1,155,985.20-637,687.20

Finding the Fourth Proportional to 770,656.80, 1,155,985.20 and 637,687.20

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Solution

The fourth proportional to 770,656.80, 1,155,985.20 and 637,687.20 is: 956,530.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,656.80 : 1,155,985.20 = 637,687.20 : x
  2. Step 2: Convert to fraction form
    770,656.80/1,155,985.20 = 637,687.20/x
  3. Step 3: Cross multiply
    770,656.80x = 1,155,985.20 × 637,687.20
  4. Step 4: Simplify right side
    770,656.80x = 737,156,965,429.44
  5. Step 5: Solve for x
    x = 737,156,965,429.44/770,656.80
  6. Step 6: Final answer
    x = 956,530.80

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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.