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Finding the Fourth Proportional to 702,951.45, 970,073.52 and 380,661.90

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Solution

The fourth proportional to 702,951.45, 970,073.52 and 380,661.90 is: 525,313.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,951.45 : 970,073.52 = 380,661.90 : x
  2. Step 2: Convert to fraction form
    702,951.45/970,073.52 = 380,661.90/x
  3. Step 3: Cross multiply
    702,951.45x = 970,073.52 × 380,661.90
  4. Step 4: Simplify right side
    702,951.45x = 369,270,029,262.89
  5. Step 5: Solve for x
    x = 369,270,029,262.89/702,951.45
  6. Step 6: Final answer
    x = 525,313.70

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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.