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Finding the Fourth Proportional to 702,911.60, 970,018.52 and 380,624.24

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Solution

The fourth proportional to 702,911.60, 970,018.52 and 380,624.24 is: 525,261.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,911.60 : 970,018.52 = 380,624.24 : x
  2. Step 2: Convert to fraction form
    702,911.60/970,018.52 = 380,624.24/x
  3. Step 3: Cross multiply
    702,911.60x = 970,018.52 × 380,624.24
  4. Step 4: Simplify right side
    702,911.60x = 369,212,561,960.93
  5. Step 5: Solve for x
    x = 369,212,561,960.93/702,911.60
  6. Step 6: Final answer
    x = 525,261.73

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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.