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Finding the Fourth Proportional to 440,087.40, 660,131.10 and 282,623.40

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Solution

The fourth proportional to 440,087.40, 660,131.10 and 282,623.40 is: 423,935.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,087.40 : 660,131.10 = 282,623.40 : x
  2. Step 2: Convert to fraction form
    440,087.40/660,131.10 = 282,623.40/x
  3. Step 3: Cross multiply
    440,087.40x = 660,131.10 × 282,623.40
  4. Step 4: Simplify right side
    440,087.40x = 186,568,495,927.74
  5. Step 5: Solve for x
    x = 186,568,495,927.74/440,087.40
  6. Step 6: Final answer
    x = 423,935.10

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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.