Home / 1,216,049.02-1,678,148.01-664,767.12

Finding the Fourth Proportional to 1,216,049.02, 1,678,148.01 and 664,767.12

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Solution

The fourth proportional to 1,216,049.02, 1,678,148.01 and 664,767.12 is: 917,378.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,049.02 : 1,678,148.01 = 664,767.12 : x
  2. Step 2: Convert to fraction form
    1,216,049.02/1,678,148.01 = 664,767.12/x
  3. Step 3: Cross multiply
    1,216,049.02x = 1,678,148.01 × 664,767.12
  4. Step 4: Simplify right side
    1,216,049.02x = 1,115,577,619,541.43
  5. Step 5: Solve for x
    x = 1,115,577,619,541.43/1,216,049.02
  6. Step 6: Final answer
    x = 917,378.82

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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.