Home / 1,319,086.81-1,978,706.76-372,378.25

Finding the Fourth Proportional to 1,319,086.81, 1,978,706.76 and 372,378.25

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Solution

The fourth proportional to 1,319,086.81, 1,978,706.76 and 372,378.25 is: 558,588.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,086.81 : 1,978,706.76 = 372,378.25 : x
  2. Step 2: Convert to fraction form
    1,319,086.81/1,978,706.76 = 372,378.25/x
  3. Step 3: Cross multiply
    1,319,086.81x = 1,978,706.76 × 372,378.25
  4. Step 4: Simplify right side
    1,319,086.81x = 736,827,360,551.97
  5. Step 5: Solve for x
    x = 736,827,360,551.97/1,319,086.81
  6. Step 6: Final answer
    x = 558,588.98

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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.