Home / 692,069.60-1,036,986.60-391,656.80

Finding the Fourth Proportional to 692,069.60, 1,036,986.60 and 391,656.80

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Solution

The fourth proportional to 692,069.60, 1,036,986.60 and 391,656.80 is: 586,852.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,069.60 : 1,036,986.60 = 391,656.80 : x
  2. Step 2: Convert to fraction form
    692,069.60/1,036,986.60 = 391,656.80/x
  3. Step 3: Cross multiply
    692,069.60x = 1,036,986.60 × 391,656.80
  4. Step 4: Simplify right side
    692,069.60x = 406,142,853,398.88
  5. Step 5: Solve for x
    x = 406,142,853,398.88/692,069.60
  6. Step 6: Final answer
    x = 586,852.61

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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.