Home / 691,235.20-1,036,998.60-291,670.30

Finding the Fourth Proportional to 691,235.20, 1,036,998.60 and 291,670.30

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Solution

The fourth proportional to 691,235.20, 1,036,998.60 and 291,670.30 is: 437,566.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,235.20 : 1,036,998.60 = 291,670.30 : x
  2. Step 2: Convert to fraction form
    691,235.20/1,036,998.60 = 291,670.30/x
  3. Step 3: Cross multiply
    691,235.20x = 1,036,998.60 × 291,670.30
  4. Step 4: Simplify right side
    691,235.20x = 302,461,692,761.58
  5. Step 5: Solve for x
    x = 302,461,692,761.58/691,235.20
  6. Step 6: Final answer
    x = 437,566.97

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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.