Home / 691,002.50-1,036,647.12-291,646.58

Finding the Fourth Proportional to 691,002.50, 1,036,647.12 and 291,646.58

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Solution

The fourth proportional to 691,002.50, 1,036,647.12 and 291,646.58 is: 437,530.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,002.50 : 1,036,647.12 = 291,646.58 : x
  2. Step 2: Convert to fraction form
    691,002.50/1,036,647.12 = 291,646.58/x
  3. Step 3: Cross multiply
    691,002.50x = 1,036,647.12 × 291,646.58
  4. Step 4: Simplify right side
    691,002.50x = 302,334,587,214.85
  5. Step 5: Solve for x
    x = 302,334,587,214.85/691,002.50
  6. Step 6: Final answer
    x = 437,530.38

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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.