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Finding the Fourth Proportional to 577,666.74, 797,118.77 and 319,502.67

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Solution

The fourth proportional to 577,666.74, 797,118.77 and 319,502.67 is: 440,879.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,666.74 : 797,118.77 = 319,502.67 : x
  2. Step 2: Convert to fraction form
    577,666.74/797,118.77 = 319,502.67/x
  3. Step 3: Cross multiply
    577,666.74x = 797,118.77 × 319,502.67
  4. Step 4: Simplify right side
    577,666.74x = 254,681,575,322.12
  5. Step 5: Solve for x
    x = 254,681,575,322.12/577,666.74
  6. Step 6: Final answer
    x = 440,879.76

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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.