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Finding the Fourth Proportional to 703,243.50, 970,479.00 and 380,953.59

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Solution

The fourth proportional to 703,243.50, 970,479.00 and 380,953.59 is: 525,717.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,243.50 : 970,479.00 = 380,953.59 : x
  2. Step 2: Convert to fraction form
    703,243.50/970,479.00 = 380,953.59/x
  3. Step 3: Cross multiply
    703,243.50x = 970,479.00 × 380,953.59
  4. Step 4: Simplify right side
    703,243.50x = 369,707,460,543.42
  5. Step 5: Solve for x
    x = 369,707,460,543.42/703,243.50
  6. Step 6: Final answer
    x = 525,717.57

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Double scale
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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.