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Finding the Fourth Proportional to 713,398.76, 984,521.34 and 426,863.96

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Solution

The fourth proportional to 713,398.76, 984,521.34 and 426,863.96 is: 589,090.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,398.76 : 984,521.34 = 426,863.96 : x
  2. Step 2: Convert to fraction form
    713,398.76/984,521.34 = 426,863.96/x
  3. Step 3: Cross multiply
    713,398.76x = 984,521.34 × 426,863.96
  4. Step 4: Simplify right side
    713,398.76x = 420,256,677,896.91
  5. Step 5: Solve for x
    x = 420,256,677,896.91/713,398.76
  6. Step 6: Final answer
    x = 589,090.84

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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.