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Finding the Fourth Proportional to 480,013.80, 720,020.70 and 301,943.40

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Solution

The fourth proportional to 480,013.80, 720,020.70 and 301,943.40 is: 452,915.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,013.80 : 720,020.70 = 301,943.40 : x
  2. Step 2: Convert to fraction form
    480,013.80/720,020.70 = 301,943.40/x
  3. Step 3: Cross multiply
    480,013.80x = 720,020.70 × 301,943.40
  4. Step 4: Simplify right side
    480,013.80x = 217,405,498,228.38
  5. Step 5: Solve for x
    x = 217,405,498,228.38/480,013.80
  6. Step 6: Final answer
    x = 452,915.10

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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.