Home / 862,177.02-1,189,803.48-499,810.68

Finding the Fourth Proportional to 862,177.02, 1,189,803.48 and 499,810.68

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Solution

The fourth proportional to 862,177.02, 1,189,803.48 and 499,810.68 is: 689,738.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,177.02 : 1,189,803.48 = 499,810.68 : x
  2. Step 2: Convert to fraction form
    862,177.02/1,189,803.48 = 499,810.68/x
  3. Step 3: Cross multiply
    862,177.02x = 1,189,803.48 × 499,810.68
  4. Step 4: Simplify right side
    862,177.02x = 594,676,486,405.17
  5. Step 5: Solve for x
    x = 594,676,486,405.17/862,177.02
  6. Step 6: Final answer
    x = 689,738.27

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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.