Home / 1,234,811.32-1,852,216.98-813,988.78

Finding the Fourth Proportional to 1,234,811.32, 1,852,216.98 and 813,988.78

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Solution

The fourth proportional to 1,234,811.32, 1,852,216.98 and 813,988.78 is: 1,220,983.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234,811.32 : 1,852,216.98 = 813,988.78 : x
  2. Step 2: Convert to fraction form
    1,234,811.32/1,852,216.98 = 813,988.78/x
  3. Step 3: Cross multiply
    1,234,811.32x = 1,852,216.98 × 813,988.78
  4. Step 4: Simplify right side
    1,234,811.32x = 1,507,683,839,845.48
  5. Step 5: Solve for x
    x = 1,507,683,839,845.48/1,234,811.32
  6. Step 6: Final answer
    x = 1,220,983.17

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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.