Home / 1,095,807.40-1,642,544.70-421,628.20

Finding the Fourth Proportional to 1,095,807.40, 1,642,544.70 and 421,628.20

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Solution

The fourth proportional to 1,095,807.40, 1,642,544.70 and 421,628.20 is: 631,993.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,807.40 : 1,642,544.70 = 421,628.20 : x
  2. Step 2: Convert to fraction form
    1,095,807.40/1,642,544.70 = 421,628.20/x
  3. Step 3: Cross multiply
    1,095,807.40x = 1,642,544.70 × 421,628.20
  4. Step 4: Simplify right side
    1,095,807.40x = 692,543,165,280.54
  5. Step 5: Solve for x
    x = 692,543,165,280.54/1,095,807.40
  6. Step 6: Final answer
    x = 631,993.51

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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.