Home / 1,019,934.90-1,529,902.35-842,642.10

Finding the Fourth Proportional to 1,019,934.90, 1,529,902.35 and 842,642.10

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Solution

The fourth proportional to 1,019,934.90, 1,529,902.35 and 842,642.10 is: 1,263,963.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,934.90 : 1,529,902.35 = 842,642.10 : x
  2. Step 2: Convert to fraction form
    1,019,934.90/1,529,902.35 = 842,642.10/x
  3. Step 3: Cross multiply
    1,019,934.90x = 1,529,902.35 × 842,642.10
  4. Step 4: Simplify right side
    1,019,934.90x = 1,289,160,128,998.94
  5. Step 5: Solve for x
    x = 1,289,160,128,998.94/1,019,934.90
  6. Step 6: Final answer
    x = 1,263,963.15

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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.