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Finding the Fourth Proportional to 702,693.68, 969,717.59 and 380,403.77

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Solution

The fourth proportional to 702,693.68, 969,717.59 and 380,403.77 is: 524,957.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,693.68 : 969,717.59 = 380,403.77 : x
  2. Step 2: Convert to fraction form
    702,693.68/969,717.59 = 380,403.77/x
  3. Step 3: Cross multiply
    702,693.68x = 969,717.59 × 380,403.77
  4. Step 4: Simplify right side
    702,693.68x = 368,884,227,071.31
  5. Step 5: Solve for x
    x = 368,884,227,071.31/702,693.68
  6. Step 6: Final answer
    x = 524,957.37

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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.