Home / 1,242,416.70-1,863,570.84-389,468.89

Finding the Fourth Proportional to 1,242,416.70, 1,863,570.84 and 389,468.89

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Solution

The fourth proportional to 1,242,416.70, 1,863,570.84 and 389,468.89 is: 584,186.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,416.70 : 1,863,570.84 = 389,468.89 : x
  2. Step 2: Convert to fraction form
    1,242,416.70/1,863,570.84 = 389,468.89/x
  3. Step 3: Cross multiply
    1,242,416.70x = 1,863,570.84 × 389,468.89
  4. Step 4: Simplify right side
    1,242,416.70x = 725,802,868,602.38
  5. Step 5: Solve for x
    x = 725,802,868,602.38/1,242,416.70
  6. Step 6: Final answer
    x = 584,186.34

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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.