Home / 913,798.76-1,369,678.62-381,142.76

Finding the Fourth Proportional to 913,798.76, 1,369,678.62 and 381,142.76

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Solution

The fourth proportional to 913,798.76, 1,369,678.62 and 381,142.76 is: 571,288.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,798.76 : 1,369,678.62 = 381,142.76 : x
  2. Step 2: Convert to fraction form
    913,798.76/1,369,678.62 = 381,142.76/x
  3. Step 3: Cross multiply
    913,798.76x = 1,369,678.62 × 381,142.76
  4. Step 4: Simplify right side
    913,798.76x = 522,043,089,539.79
  5. Step 5: Solve for x
    x = 522,043,089,539.79/913,798.76
  6. Step 6: Final answer
    x = 571,288.90

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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.