Home / 791,780.08-1,187,692.80-286,387.60

Finding the Fourth Proportional to 791,780.08, 1,187,692.80 and 286,387.60

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Solution

The fourth proportional to 791,780.08, 1,187,692.80 and 286,387.60 is: 429,589.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,780.08 : 1,187,692.80 = 286,387.60 : x
  2. Step 2: Convert to fraction form
    791,780.08/1,187,692.80 = 286,387.60/x
  3. Step 3: Cross multiply
    791,780.08x = 1,187,692.80 × 286,387.60
  4. Step 4: Simplify right side
    791,780.08x = 340,140,490,529.28
  5. Step 5: Solve for x
    x = 340,140,490,529.28/791,780.08
  6. Step 6: Final answer
    x = 429,589.60

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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.