Home / 817,286.40-1,226,851.20-631,123.20

Finding the Fourth Proportional to 817,286.40, 1,226,851.20 and 631,123.20

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Solution

The fourth proportional to 817,286.40, 1,226,851.20 and 631,123.20 is: 947,396.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,286.40 : 1,226,851.20 = 631,123.20 : x
  2. Step 2: Convert to fraction form
    817,286.40/1,226,851.20 = 631,123.20/x
  3. Step 3: Cross multiply
    817,286.40x = 1,226,851.20 × 631,123.20
  4. Step 4: Simplify right side
    817,286.40x = 774,294,255,267.84
  5. Step 5: Solve for x
    x = 774,294,255,267.84/817,286.40
  6. Step 6: Final answer
    x = 947,396.48

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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.