Home / 1,095,931.40-1,642,730.70-421,752.20

Finding the Fourth Proportional to 1,095,931.40, 1,642,730.70 and 421,752.20

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Solution

The fourth proportional to 1,095,931.40, 1,642,730.70 and 421,752.20 is: 632,179.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,931.40 : 1,642,730.70 = 421,752.20 : x
  2. Step 2: Convert to fraction form
    1,095,931.40/1,642,730.70 = 421,752.20/x
  3. Step 3: Cross multiply
    1,095,931.40x = 1,642,730.70 × 421,752.20
  4. Step 4: Simplify right side
    1,095,931.40x = 692,825,286,732.54
  5. Step 5: Solve for x
    x = 692,825,286,732.54/1,095,931.40
  6. Step 6: Final answer
    x = 632,179.43

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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.