Home / 945,133.20-1,417,829.40-313,981.20

Finding the Fourth Proportional to 945,133.20, 1,417,829.40 and 313,981.20

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Solution

The fourth proportional to 945,133.20, 1,417,829.40 and 313,981.20 is: 471,014.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,133.20 : 1,417,829.40 = 313,981.20 : x
  2. Step 2: Convert to fraction form
    945,133.20/1,417,829.40 = 313,981.20/x
  3. Step 3: Cross multiply
    945,133.20x = 1,417,829.40 × 313,981.20
  4. Step 4: Simplify right side
    945,133.20x = 445,171,776,407.28
  5. Step 5: Solve for x
    x = 445,171,776,407.28/945,133.20
  6. Step 6: Final answer
    x = 471,014.85

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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.