Home / 868,124.21-1,302,253.65-260,865.11

Finding the Fourth Proportional to 868,124.21, 1,302,253.65 and 260,865.11

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Solution

The fourth proportional to 868,124.21, 1,302,253.65 and 260,865.11 is: 391,317.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,124.21 : 1,302,253.65 = 260,865.11 : x
  2. Step 2: Convert to fraction form
    868,124.21/1,302,253.65 = 260,865.11/x
  3. Step 3: Cross multiply
    868,124.21x = 1,302,253.65 × 260,865.11
  4. Step 4: Simplify right side
    868,124.21x = 339,712,535,143.88
  5. Step 5: Solve for x
    x = 339,712,535,143.88/868,124.21
  6. Step 6: Final answer
    x = 391,317.89

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1.5x scale

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.