Home / 755,816.87-1,133,718.25-306,430.91

Finding the Fourth Proportional to 755,816.87, 1,133,718.25 and 306,430.91

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Solution

The fourth proportional to 755,816.87, 1,133,718.25 and 306,430.91 is: 459,643.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,816.87 : 1,133,718.25 = 306,430.91 : x
  2. Step 2: Convert to fraction form
    755,816.87/1,133,718.25 = 306,430.91/x
  3. Step 3: Cross multiply
    755,816.87x = 1,133,718.25 × 306,430.91
  4. Step 4: Simplify right side
    755,816.87x = 347,406,317,099.33
  5. Step 5: Solve for x
    x = 347,406,317,099.33/755,816.87
  6. Step 6: Final answer
    x = 459,643.51

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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.