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Finding the Fourth Proportional to 702,929.03, 970,040.30 and 380,639.11

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Solution

The fourth proportional to 702,929.03, 970,040.30 and 380,639.11 is: 525,281.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,929.03 : 970,040.30 = 380,639.11 : x
  2. Step 2: Convert to fraction form
    702,929.03/970,040.30 = 380,639.11/x
  3. Step 3: Cross multiply
    702,929.03x = 970,040.30 × 380,639.11
  4. Step 4: Simplify right side
    702,929.03x = 369,235,276,456.13
  5. Step 5: Solve for x
    x = 369,235,276,456.13/702,929.03
  6. Step 6: Final answer
    x = 525,281.02

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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.