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Finding the Fourth Proportional to 478,499.94, 660,341.70 and 294,668.96

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Solution

The fourth proportional to 478,499.94, 660,341.70 and 294,668.96 is: 406,650.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,499.94 : 660,341.70 = 294,668.96 : x
  2. Step 2: Convert to fraction form
    478,499.94/660,341.70 = 294,668.96/x
  3. Step 3: Cross multiply
    478,499.94x = 660,341.70 × 294,668.96
  4. Step 4: Simplify right side
    478,499.94x = 194,582,198,681.92
  5. Step 5: Solve for x
    x = 194,582,198,681.92/478,499.94
  6. Step 6: Final answer
    x = 406,650.41

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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.