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Finding the Fourth Proportional to 464,389.82, 640,264.71 and 300,757.23

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Solution

The fourth proportional to 464,389.82, 640,264.71 and 300,757.23 is: 414,660.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,389.82 : 640,264.71 = 300,757.23 : x
  2. Step 2: Convert to fraction form
    464,389.82/640,264.71 = 300,757.23/x
  3. Step 3: Cross multiply
    464,389.82x = 640,264.71 × 300,757.23
  4. Step 4: Simplify right side
    464,389.82x = 192,564,240,646.35
  5. Step 5: Solve for x
    x = 192,564,240,646.35/464,389.82
  6. Step 6: Final answer
    x = 414,660.77

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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.