Home / 926,150.76-1,388,273.58-421,063.11

Finding the Fourth Proportional to 926,150.76, 1,388,273.58 and 421,063.11

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Solution

The fourth proportional to 926,150.76, 1,388,273.58 and 421,063.11 is: 631,161.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,150.76 : 1,388,273.58 = 421,063.11 : x
  2. Step 2: Convert to fraction form
    926,150.76/1,388,273.58 = 421,063.11/x
  3. Step 3: Cross multiply
    926,150.76x = 1,388,273.58 × 421,063.11
  4. Step 4: Simplify right side
    926,150.76x = 584,550,791,125.63
  5. Step 5: Solve for x
    x = 584,550,791,125.63/926,150.76
  6. Step 6: Final answer
    x = 631,161.60

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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.