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Finding the Fourth Proportional to 702,962.70, 970,089.04 and 380,673.15

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Solution

The fourth proportional to 702,962.70, 970,089.04 and 380,673.15 is: 525,329.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,962.70 : 970,089.04 = 380,673.15 : x
  2. Step 2: Convert to fraction form
    702,962.70/970,089.04 = 380,673.15/x
  3. Step 3: Cross multiply
    702,962.70x = 970,089.04 × 380,673.15
  4. Step 4: Simplify right side
    702,962.70x = 369,286,850,637.28
  5. Step 5: Solve for x
    x = 369,286,850,637.28/702,962.70
  6. Step 6: Final answer
    x = 525,329.23

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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.