Home / 501,320.72-691,418.76-440,762.96

Finding the Fourth Proportional to 501,320.72, 691,418.76 and 440,762.96

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Solution

The fourth proportional to 501,320.72, 691,418.76 and 440,762.96 is: 607,897.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,320.72 : 691,418.76 = 440,762.96 : x
  2. Step 2: Convert to fraction form
    501,320.72/691,418.76 = 440,762.96/x
  3. Step 3: Cross multiply
    501,320.72x = 691,418.76 × 440,762.96
  4. Step 4: Simplify right side
    501,320.72x = 304,751,779,257.13
  5. Step 5: Solve for x
    x = 304,751,779,257.13/501,320.72
  6. Step 6: Final answer
    x = 607,897.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.