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Finding the Fourth Proportional to 435,520.80, 652,406.40 and 302,551.20

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Solution

The fourth proportional to 435,520.80, 652,406.40 and 302,551.20 is: 453,219.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,520.80 : 652,406.40 = 302,551.20 : x
  2. Step 2: Convert to fraction form
    435,520.80/652,406.40 = 302,551.20/x
  3. Step 3: Cross multiply
    435,520.80x = 652,406.40 × 302,551.20
  4. Step 4: Simplify right side
    435,520.80x = 197,386,339,207.68
  5. Step 5: Solve for x
    x = 197,386,339,207.68/435,520.80
  6. Step 6: Final answer
    x = 453,219.09

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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.