Home / 438,727.20-658,090.80-297,009.60

Finding the Fourth Proportional to 438,727.20, 658,090.80 and 297,009.60

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Solution

The fourth proportional to 438,727.20, 658,090.80 and 297,009.60 is: 445,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,727.20 : 658,090.80 = 297,009.60 : x
  2. Step 2: Convert to fraction form
    438,727.20/658,090.80 = 297,009.60/x
  3. Step 3: Cross multiply
    438,727.20x = 658,090.80 × 297,009.60
  4. Step 4: Simplify right side
    438,727.20x = 195,459,285,271.68
  5. Step 5: Solve for x
    x = 195,459,285,271.68/438,727.20
  6. Step 6: Final answer
    x = 445,514.40

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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.