Home / 821,946.30-1,232,044.65-316,311.90

Finding the Fourth Proportional to 821,946.30, 1,232,044.65 and 316,311.90

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Solution

The fourth proportional to 821,946.30, 1,232,044.65 and 316,311.90 is: 474,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,946.30 : 1,232,044.65 = 316,311.90 : x
  2. Step 2: Convert to fraction form
    821,946.30/1,232,044.65 = 316,311.90/x
  3. Step 3: Cross multiply
    821,946.30x = 1,232,044.65 × 316,311.90
  4. Step 4: Simplify right side
    821,946.30x = 389,710,384,126.34
  5. Step 5: Solve for x
    x = 389,710,384,126.34/821,946.30
  6. Step 6: Final answer
    x = 474,131.20

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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.