Home / 849,972.68-1,172,991.09-462,803.12

Finding the Fourth Proportional to 849,972.68, 1,172,991.09 and 462,803.12

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Solution

The fourth proportional to 849,972.68, 1,172,991.09 and 462,803.12 is: 638,683.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,972.68 : 1,172,991.09 = 462,803.12 : x
  2. Step 2: Convert to fraction form
    849,972.68/1,172,991.09 = 462,803.12/x
  3. Step 3: Cross multiply
    849,972.68x = 1,172,991.09 × 462,803.12
  4. Step 4: Simplify right side
    849,972.68x = 542,863,933,251.72
  5. Step 5: Solve for x
    x = 542,863,933,251.72/849,972.68
  6. Step 6: Final answer
    x = 638,683.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.