Home / 920,719.23-1,270,656.39-558,158.37

Finding the Fourth Proportional to 920,719.23, 1,270,656.39 and 558,158.37

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Solution

The fourth proportional to 920,719.23, 1,270,656.39 and 558,158.37 is: 770,297.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,719.23 : 1,270,656.39 = 558,158.37 : x
  2. Step 2: Convert to fraction form
    920,719.23/1,270,656.39 = 558,158.37/x
  3. Step 3: Cross multiply
    920,719.23x = 1,270,656.39 × 558,158.37
  4. Step 4: Simplify right side
    920,719.23x = 709,227,499,472.48
  5. Step 5: Solve for x
    x = 709,227,499,472.48/920,719.23
  6. Step 6: Final answer
    x = 770,297.26

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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.