Home / 815,899.86-1,223,849.80-283,421.40

Finding the Fourth Proportional to 815,899.86, 1,223,849.80 and 283,421.40

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Solution

The fourth proportional to 815,899.86, 1,223,849.80 and 283,421.40 is: 425,132.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,899.86 : 1,223,849.80 = 283,421.40 : x
  2. Step 2: Convert to fraction form
    815,899.86/1,223,849.80 = 283,421.40/x
  3. Step 3: Cross multiply
    815,899.86x = 1,223,849.80 × 283,421.40
  4. Step 4: Simplify right side
    815,899.86x = 346,865,227,119.62
  5. Step 5: Solve for x
    x = 346,865,227,119.62/815,899.86
  6. Step 6: Final answer
    x = 425,132.11

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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.