Home / 1,289,273.25-1,933,695.39-390,501.30

Finding the Fourth Proportional to 1,289,273.25, 1,933,695.39 and 390,501.30

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Solution

The fourth proportional to 1,289,273.25, 1,933,695.39 and 390,501.30 is: 585,686.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,273.25 : 1,933,695.39 = 390,501.30 : x
  2. Step 2: Convert to fraction form
    1,289,273.25/1,933,695.39 = 390,501.30/x
  3. Step 3: Cross multiply
    1,289,273.25x = 1,933,695.39 × 390,501.30
  4. Step 4: Simplify right side
    1,289,273.25x = 755,110,563,599.01
  5. Step 5: Solve for x
    x = 755,110,563,599.01/1,289,273.25
  6. Step 6: Final answer
    x = 585,686.99

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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.