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Finding the Fourth Proportional to 702,700.79, 969,719.04 and 380,403.81

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Solution

The fourth proportional to 702,700.79, 969,719.04 and 380,403.81 is: 524,952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,700.79 : 969,719.04 = 380,403.81 : x
  2. Step 2: Convert to fraction form
    702,700.79/969,719.04 = 380,403.81/x
  3. Step 3: Cross multiply
    702,700.79x = 969,719.04 × 380,403.81
  4. Step 4: Simplify right side
    702,700.79x = 368,884,817,445.54
  5. Step 5: Solve for x
    x = 368,884,817,445.54/702,700.79
  6. Step 6: Final answer
    x = 524,952.90

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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.