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Finding the Fourth Proportional to 647,602.30, 971,403.45 and 436,095.10

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Solution

The fourth proportional to 647,602.30, 971,403.45 and 436,095.10 is: 654,142.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,602.30 : 971,403.45 = 436,095.10 : x
  2. Step 2: Convert to fraction form
    647,602.30/971,403.45 = 436,095.10/x
  3. Step 3: Cross multiply
    647,602.30x = 971,403.45 × 436,095.10
  4. Step 4: Simplify right side
    647,602.30x = 423,624,284,668.10
  5. Step 5: Solve for x
    x = 423,624,284,668.10/647,602.30
  6. Step 6: Final answer
    x = 654,142.65

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Similar ratio
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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.