Home / 687,901.23-1,031,064.53-266,816.25

Finding the Fourth Proportional to 687,901.23, 1,031,064.53 and 266,816.25

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Solution

The fourth proportional to 687,901.23, 1,031,064.53 and 266,816.25 is: 399,919.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,901.23 : 1,031,064.53 = 266,816.25 : x
  2. Step 2: Convert to fraction form
    687,901.23/1,031,064.53 = 266,816.25/x
  3. Step 3: Cross multiply
    687,901.23x = 1,031,064.53 × 266,816.25
  4. Step 4: Simplify right side
    687,901.23x = 275,104,770,068.53
  5. Step 5: Solve for x
    x = 275,104,770,068.53/687,901.23
  6. Step 6: Final answer
    x = 399,919.00

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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.