Home / 903,050.34-1,355,161.23-391,215.36

Finding the Fourth Proportional to 903,050.34, 1,355,161.23 and 391,215.36

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Solution

The fourth proportional to 903,050.34, 1,355,161.23 and 391,215.36 is: 587,076.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,050.34 : 1,355,161.23 = 391,215.36 : x
  2. Step 2: Convert to fraction form
    903,050.34/1,355,161.23 = 391,215.36/x
  3. Step 3: Cross multiply
    903,050.34x = 1,355,161.23 × 391,215.36
  4. Step 4: Simplify right side
    903,050.34x = 530,159,888,452.49
  5. Step 5: Solve for x
    x = 530,159,888,452.49/903,050.34
  6. Step 6: Final answer
    x = 587,076.78

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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.