Home / 740,256.20-1,021,560.60-434,337.80

Finding the Fourth Proportional to 740,256.20, 1,021,560.60 and 434,337.80

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Solution

The fourth proportional to 740,256.20, 1,021,560.60 and 434,337.80 is: 599,390.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,256.20 : 1,021,560.60 = 434,337.80 : x
  2. Step 2: Convert to fraction form
    740,256.20/1,021,560.60 = 434,337.80/x
  3. Step 3: Cross multiply
    740,256.20x = 1,021,560.60 × 434,337.80
  4. Step 4: Simplify right side
    740,256.20x = 443,702,383,570.68
  5. Step 5: Solve for x
    x = 443,702,383,570.68/740,256.20
  6. Step 6: Final answer
    x = 599,390.30

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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.