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Finding the Fourth Proportional to 702,693.70, 969,717.62 and 380,403.79

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Solution

The fourth proportional to 702,693.70, 969,717.62 and 380,403.79 is: 524,957.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,693.70 : 969,717.62 = 380,403.79 : x
  2. Step 2: Convert to fraction form
    702,693.70/969,717.62 = 380,403.79/x
  3. Step 3: Cross multiply
    702,693.70x = 969,717.62 × 380,403.79
  4. Step 4: Simplify right side
    702,693.70x = 368,884,257,877.78
  5. Step 5: Solve for x
    x = 368,884,257,877.78/702,693.70
  6. Step 6: Final answer
    x = 524,957.40

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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.