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Finding the Fourth Proportional to 703,260.72, 970,504.45 and 380,970.58

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Solution

The fourth proportional to 703,260.72, 970,504.45 and 380,970.58 is: 525,741.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,260.72 : 970,504.45 = 380,970.58 : x
  2. Step 2: Convert to fraction form
    703,260.72/970,504.45 = 380,970.58/x
  3. Step 3: Cross multiply
    703,260.72x = 970,504.45 × 380,970.58
  4. Step 4: Simplify right side
    703,260.72x = 369,733,643,793.05
  5. Step 5: Solve for x
    x = 369,733,643,793.05/703,260.72
  6. Step 6: Final answer
    x = 525,741.92

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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.