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Finding the Fourth Proportional to 719,559.34, 992,993.40 and 397,270.06

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Solution

The fourth proportional to 719,559.34, 992,993.40 and 397,270.06 is: 548,233.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,559.34 : 992,993.40 = 397,270.06 : x
  2. Step 2: Convert to fraction form
    719,559.34/992,993.40 = 397,270.06/x
  3. Step 3: Cross multiply
    719,559.34x = 992,993.40 × 397,270.06
  4. Step 4: Simplify right side
    719,559.34x = 394,486,547,597.60
  5. Step 5: Solve for x
    x = 394,486,547,597.60/719,559.34
  6. Step 6: Final answer
    x = 548,233.52

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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.