Home / 1,387,572.50-2,081,583.07-427,803.45

Finding the Fourth Proportional to 1,387,572.50, 2,081,583.07 and 427,803.45

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Solution

The fourth proportional to 1,387,572.50, 2,081,583.07 and 427,803.45 is: 641,774.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,572.50 : 2,081,583.07 = 427,803.45 : x
  2. Step 2: Convert to fraction form
    1,387,572.50/2,081,583.07 = 427,803.45/x
  3. Step 3: Cross multiply
    1,387,572.50x = 2,081,583.07 × 427,803.45
  4. Step 4: Simplify right side
    1,387,572.50x = 890,508,424,047.45
  5. Step 5: Solve for x
    x = 890,508,424,047.45/1,387,572.50
  6. Step 6: Final answer
    x = 641,774.34

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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.