Home / 1,095,929.90-1,642,728.45-421,750.70

Finding the Fourth Proportional to 1,095,929.90, 1,642,728.45 and 421,750.70

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Solution

The fourth proportional to 1,095,929.90, 1,642,728.45 and 421,750.70 is: 632,177.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,929.90 : 1,642,728.45 = 421,750.70 : x
  2. Step 2: Convert to fraction form
    1,095,929.90/1,642,728.45 = 421,750.70/x
  3. Step 3: Cross multiply
    1,095,929.90x = 1,642,728.45 × 421,750.70
  4. Step 4: Simplify right side
    1,095,929.90x = 692,821,873,697.42
  5. Step 5: Solve for x
    x = 692,821,873,697.42/1,095,929.90
  6. Step 6: Final answer
    x = 632,177.18

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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.