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Finding the Fourth Proportional to 740.97, 1,103.04 and 705.60

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Solution

The fourth proportional to 740.97, 1,103.04 and 705.60 is: 1,050.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    740.97 : 1,103.04 = 705.60 : x
  2. Step 2: Convert to fraction form
    740.97/1,103.04 = 705.60/x
  3. Step 3: Cross multiply
    740.97x = 1,103.04 × 705.60
  4. Step 4: Simplify right side
    740.97x = 778,305.02
  5. Step 5: Solve for x
    x = 778,305.02/740.97
  6. Step 6: Final answer
    x = 1,050.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.