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Finding the Fourth Proportional to 701.34, 1,056.10 and 520.02

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Solution

The fourth proportional to 701.34, 1,056.10 and 520.02 is: 783.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.34 : 1,056.10 = 520.02 : x
  2. Step 2: Convert to fraction form
    701.34/1,056.10 = 520.02/x
  3. Step 3: Cross multiply
    701.34x = 1,056.10 × 520.02
  4. Step 4: Simplify right side
    701.34x = 549,193.12
  5. Step 5: Solve for x
    x = 549,193.12/701.34
  6. Step 6: Final answer
    x = 783.06

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.