Home / 909,209.45-1,363,765.08-278,123.33

Finding the Fourth Proportional to 909,209.45, 1,363,765.08 and 278,123.33

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Solution

The fourth proportional to 909,209.45, 1,363,765.08 and 278,123.33 is: 417,169.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,209.45 : 1,363,765.08 = 278,123.33 : x
  2. Step 2: Convert to fraction form
    909,209.45/1,363,765.08 = 278,123.33/x
  3. Step 3: Cross multiply
    909,209.45x = 1,363,765.08 × 278,123.33
  4. Step 4: Simplify right side
    909,209.45x = 379,294,885,387.32
  5. Step 5: Solve for x
    x = 379,294,885,387.32/909,209.45
  6. Step 6: Final answer
    x = 417,169.98

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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.