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Finding the Fourth Proportional to 710,795.96, 981,005.28 and 435,318.20

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Solution

The fourth proportional to 710,795.96, 981,005.28 and 435,318.20 is: 600,804.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,795.96 : 981,005.28 = 435,318.20 : x
  2. Step 2: Convert to fraction form
    710,795.96/981,005.28 = 435,318.20/x
  3. Step 3: Cross multiply
    710,795.96x = 981,005.28 × 435,318.20
  4. Step 4: Simplify right side
    710,795.96x = 427,049,452,680.10
  5. Step 5: Solve for x
    x = 427,049,452,680.10/710,795.96
  6. Step 6: Final answer
    x = 600,804.56

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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.