Home / 740,117.12-1,021,370.28-434,198.76

Finding the Fourth Proportional to 740,117.12, 1,021,370.28 and 434,198.76

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Solution

The fourth proportional to 740,117.12, 1,021,370.28 and 434,198.76 is: 599,199.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,117.12 : 1,021,370.28 = 434,198.76 : x
  2. Step 2: Convert to fraction form
    740,117.12/1,021,370.28 = 434,198.76/x
  3. Step 3: Cross multiply
    740,117.12x = 1,021,370.28 × 434,198.76
  4. Step 4: Simplify right side
    740,117.12x = 443,477,709,076.85
  5. Step 5: Solve for x
    x = 443,477,709,076.85/740,117.12
  6. Step 6: Final answer
    x = 599,199.37

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.