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Finding the Fourth Proportional to 440,613.90, 608,050.86 and 239,409.90

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Solution

The fourth proportional to 440,613.90, 608,050.86 and 239,409.90 is: 330,387.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,613.90 : 608,050.86 = 239,409.90 : x
  2. Step 2: Convert to fraction form
    440,613.90/608,050.86 = 239,409.90/x
  3. Step 3: Cross multiply
    440,613.90x = 608,050.86 × 239,409.90
  4. Step 4: Simplify right side
    440,613.90x = 145,573,395,587.51
  5. Step 5: Solve for x
    x = 145,573,395,587.51/440,613.90
  6. Step 6: Final answer
    x = 330,387.66

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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.