Home / 740,130.55-1,021,388.60-434,212.25

Finding the Fourth Proportional to 740,130.55, 1,021,388.60 and 434,212.25

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Solution

The fourth proportional to 740,130.55, 1,021,388.60 and 434,212.25 is: 599,217.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,130.55 : 1,021,388.60 = 434,212.25 : x
  2. Step 2: Convert to fraction form
    740,130.55/1,021,388.60 = 434,212.25/x
  3. Step 3: Cross multiply
    740,130.55x = 1,021,388.60 × 434,212.25
  4. Step 4: Simplify right side
    740,130.55x = 443,499,438,108.94
  5. Step 5: Solve for x
    x = 443,499,438,108.94/740,130.55
  6. Step 6: Final answer
    x = 599,217.85

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Double scale
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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.