Home / 857,308.55-1,285,158.23-288,291.79

Finding the Fourth Proportional to 857,308.55, 1,285,158.23 and 288,291.79

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Solution

The fourth proportional to 857,308.55, 1,285,158.23 and 288,291.79 is: 432,167.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,308.55 : 1,285,158.23 = 288,291.79 : x
  2. Step 2: Convert to fraction form
    857,308.55/1,285,158.23 = 288,291.79/x
  3. Step 3: Cross multiply
    857,308.55x = 1,285,158.23 × 288,291.79
  4. Step 4: Simplify right side
    857,308.55x = 370,500,558,692.68
  5. Step 5: Solve for x
    x = 370,500,558,692.68/857,308.55
  6. Step 6: Final answer
    x = 432,167.11

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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.