Home / 691,235.70-1,036,999.35-291,670.80

Finding the Fourth Proportional to 691,235.70, 1,036,999.35 and 291,670.80

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Solution

The fourth proportional to 691,235.70, 1,036,999.35 and 291,670.80 is: 437,567.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,235.70 : 1,036,999.35 = 291,670.80 : x
  2. Step 2: Convert to fraction form
    691,235.70/1,036,999.35 = 291,670.80/x
  3. Step 3: Cross multiply
    691,235.70x = 1,036,999.35 × 291,670.80
  4. Step 4: Simplify right side
    691,235.70x = 302,462,430,013.98
  5. Step 5: Solve for x
    x = 302,462,430,013.98/691,235.70
  6. Step 6: Final answer
    x = 437,567.72

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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.