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Finding the Fourth Proportional to 719,364.06, 992,722.50 and 397,074.22

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Solution

The fourth proportional to 719,364.06, 992,722.50 and 397,074.22 is: 547,962.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,364.06 : 992,722.50 = 397,074.22 : x
  2. Step 2: Convert to fraction form
    719,364.06/992,722.50 = 397,074.22/x
  3. Step 3: Cross multiply
    719,364.06x = 992,722.50 × 397,074.22
  4. Step 4: Simplify right side
    719,364.06x = 394,184,509,882.14
  5. Step 5: Solve for x
    x = 394,184,509,882.14/719,364.06
  6. Step 6: Final answer
    x = 547,962.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.