Home / 1,146,970.66-1,719,381.30-388,281.46

Finding the Fourth Proportional to 1,146,970.66, 1,719,381.30 and 388,281.46

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Solution

The fourth proportional to 1,146,970.66, 1,719,381.30 and 388,281.46 is: 582,058.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146,970.66 : 1,719,381.30 = 388,281.46 : x
  2. Step 2: Convert to fraction form
    1,146,970.66/1,719,381.30 = 388,281.46/x
  3. Step 3: Cross multiply
    1,146,970.66x = 1,719,381.30 × 388,281.46
  4. Step 4: Simplify right side
    1,146,970.66x = 667,603,881,460.70
  5. Step 5: Solve for x
    x = 667,603,881,460.70/1,146,970.66
  6. Step 6: Final answer
    x = 582,058.38

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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.