Home / 817,400.40-1,227,022.20-631,237.20

Finding the Fourth Proportional to 817,400.40, 1,227,022.20 and 631,237.20

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Solution

The fourth proportional to 817,400.40, 1,227,022.20 and 631,237.20 is: 947,567.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,400.40 : 1,227,022.20 = 631,237.20 : x
  2. Step 2: Convert to fraction form
    817,400.40/1,227,022.20 = 631,237.20/x
  3. Step 3: Cross multiply
    817,400.40x = 1,227,022.20 × 631,237.20
  4. Step 4: Simplify right side
    817,400.40x = 774,542,057,865.84
  5. Step 5: Solve for x
    x = 774,542,057,865.84/817,400.40
  6. Step 6: Final answer
    x = 947,567.51

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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.