Home / 1,289,410.83-1,934,130.83-390,845.43

Finding the Fourth Proportional to 1,289,410.83, 1,934,130.83 and 390,845.43

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Solution

The fourth proportional to 1,289,410.83, 1,934,130.83 and 390,845.43 is: 586,272.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,410.83 : 1,934,130.83 = 390,845.43 : x
  2. Step 2: Convert to fraction form
    1,289,410.83/1,934,130.83 = 390,845.43/x
  3. Step 3: Cross multiply
    1,289,410.83x = 1,934,130.83 × 390,845.43
  4. Step 4: Simplify right side
    1,289,410.83x = 755,946,193,973.38
  5. Step 5: Solve for x
    x = 755,946,193,973.38/1,289,410.83
  6. Step 6: Final answer
    x = 586,272.56

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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.