Home / 740,240.09-1,021,469.78-434,284.46

Finding the Fourth Proportional to 740,240.09, 1,021,469.78 and 434,284.46

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Solution

The fourth proportional to 740,240.09, 1,021,469.78 and 434,284.46 is: 599,276.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,240.09 : 1,021,469.78 = 434,284.46 : x
  2. Step 2: Convert to fraction form
    740,240.09/1,021,469.78 = 434,284.46/x
  3. Step 3: Cross multiply
    740,240.09x = 1,021,469.78 × 434,284.46
  4. Step 4: Simplify right side
    740,240.09x = 443,608,446,706.27
  5. Step 5: Solve for x
    x = 443,608,446,706.27/740,240.09
  6. Step 6: Final answer
    x = 599,276.45

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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.