Home / 389,765.55-581,045.46-383,623.35

Finding the Fourth Proportional to 389,765.55, 581,045.46 and 383,623.35

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Solution

The fourth proportional to 389,765.55, 581,045.46 and 383,623.35 is: 571,888.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,765.55 : 581,045.46 = 383,623.35 : x
  2. Step 2: Convert to fraction form
    389,765.55/581,045.46 = 383,623.35/x
  3. Step 3: Cross multiply
    389,765.55x = 581,045.46 × 383,623.35
  4. Step 4: Simplify right side
    389,765.55x = 222,902,603,921.32
  5. Step 5: Solve for x
    x = 222,902,603,921.32/389,765.55
  6. Step 6: Final answer
    x = 571,888.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.