Home / 735,317.40-1,102,976.10-398,519.40

Finding the Fourth Proportional to 735,317.40, 1,102,976.10 and 398,519.40

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Solution

The fourth proportional to 735,317.40, 1,102,976.10 and 398,519.40 is: 597,779.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,317.40 : 1,102,976.10 = 398,519.40 : x
  2. Step 2: Convert to fraction form
    735,317.40/1,102,976.10 = 398,519.40/x
  3. Step 3: Cross multiply
    735,317.40x = 1,102,976.10 × 398,519.40
  4. Step 4: Simplify right side
    735,317.40x = 439,557,373,586.34
  5. Step 5: Solve for x
    x = 439,557,373,586.34/735,317.40
  6. Step 6: Final answer
    x = 597,779.10

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.