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Finding the Fourth Proportional to 698,268.16, 963,609.92 and 380,316.16

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Solution

The fourth proportional to 698,268.16, 963,609.92 and 380,316.16 is: 524,836.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,268.16 : 963,609.92 = 380,316.16 : x
  2. Step 2: Convert to fraction form
    698,268.16/963,609.92 = 380,316.16/x
  3. Step 3: Cross multiply
    698,268.16x = 963,609.92 × 380,316.16
  4. Step 4: Simplify right side
    698,268.16x = 366,476,424,512.31
  5. Step 5: Solve for x
    x = 366,476,424,512.31/698,268.16
  6. Step 6: Final answer
    x = 524,836.22

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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.