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Finding the Fourth Proportional to 703,603.19, 970,441.14 and 442,034.55

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Solution

The fourth proportional to 703,603.19, 970,441.14 and 442,034.55 is: 609,673.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,603.19 : 970,441.14 = 442,034.55 : x
  2. Step 2: Convert to fraction form
    703,603.19/970,441.14 = 442,034.55/x
  3. Step 3: Cross multiply
    703,603.19x = 970,441.14 × 442,034.55
  4. Step 4: Simplify right side
    703,603.19x = 428,968,512,621.39
  5. Step 5: Solve for x
    x = 428,968,512,621.39/703,603.19
  6. Step 6: Final answer
    x = 609,673.92

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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.