Home / 691,814.40-1,038,499.20-534,739.20

Finding the Fourth Proportional to 691,814.40, 1,038,499.20 and 534,739.20

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Solution

The fourth proportional to 691,814.40, 1,038,499.20 and 534,739.20 is: 802,709.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,814.40 : 1,038,499.20 = 534,739.20 : x
  2. Step 2: Convert to fraction form
    691,814.40/1,038,499.20 = 534,739.20/x
  3. Step 3: Cross multiply
    691,814.40x = 1,038,499.20 × 534,739.20
  4. Step 4: Simplify right side
    691,814.40x = 555,326,231,408.64
  5. Step 5: Solve for x
    x = 555,326,231,408.64/691,814.40
  6. Step 6: Final answer
    x = 802,709.85

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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.