Home / 672,031.15-1,008,046.73-434,085.55

Finding the Fourth Proportional to 672,031.15, 1,008,046.73 and 434,085.55

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Solution

The fourth proportional to 672,031.15, 1,008,046.73 and 434,085.55 is: 651,128.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,031.15 : 1,008,046.73 = 434,085.55 : x
  2. Step 2: Convert to fraction form
    672,031.15/1,008,046.73 = 434,085.55/x
  3. Step 3: Cross multiply
    672,031.15x = 1,008,046.73 × 434,085.55
  4. Step 4: Simplify right side
    672,031.15x = 437,578,519,217.75
  5. Step 5: Solve for x
    x = 437,578,519,217.75/672,031.15
  6. Step 6: Final answer
    x = 651,128.33

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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.