Home / 804,834.37-1,109,561.61-642,043.40

Finding the Fourth Proportional to 804,834.37, 1,109,561.61 and 642,043.40

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Solution

The fourth proportional to 804,834.37, 1,109,561.61 and 642,043.40 is: 885,134.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,834.37 : 1,109,561.61 = 642,043.40 : x
  2. Step 2: Convert to fraction form
    804,834.37/1,109,561.61 = 642,043.40/x
  3. Step 3: Cross multiply
    804,834.37x = 1,109,561.61 × 642,043.40
  4. Step 4: Simplify right side
    804,834.37x = 712,386,701,842.24
  5. Step 5: Solve for x
    x = 712,386,701,842.24/804,834.37
  6. Step 6: Final answer
    x = 885,134.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.