Home / 479,897.61-719,977.91-209,976.81

Finding the Fourth Proportional to 479,897.61, 719,977.91 and 209,976.81

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Solution

The fourth proportional to 479,897.61, 719,977.91 and 209,976.81 is: 315,022.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,897.61 : 719,977.91 = 209,976.81 : x
  2. Step 2: Convert to fraction form
    479,897.61/719,977.91 = 209,976.81/x
  3. Step 3: Cross multiply
    479,897.61x = 719,977.91 × 209,976.81
  4. Step 4: Simplify right side
    479,897.61x = 151,178,663,762.38
  5. Step 5: Solve for x
    x = 151,178,663,762.38/479,897.61
  6. Step 6: Final answer
    x = 315,022.75

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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.