Home / 740,630.40-1,110,945.60-457,195.20

Finding the Fourth Proportional to 740,630.40, 1,110,945.60 and 457,195.20

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Solution

The fourth proportional to 740,630.40, 1,110,945.60 and 457,195.20 is: 685,792.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,630.40 : 1,110,945.60 = 457,195.20 : x
  2. Step 2: Convert to fraction form
    740,630.40/1,110,945.60 = 457,195.20/x
  3. Step 3: Cross multiply
    740,630.40x = 1,110,945.60 × 457,195.20
  4. Step 4: Simplify right side
    740,630.40x = 507,918,995,781.12
  5. Step 5: Solve for x
    x = 507,918,995,781.12/740,630.40
  6. Step 6: Final answer
    x = 685,792.80

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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.