Home / 878,897.36-1,212,845.22-496,932.34

Finding the Fourth Proportional to 878,897.36, 1,212,845.22 and 496,932.34

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Solution

The fourth proportional to 878,897.36, 1,212,845.22 and 496,932.34 is: 685,747.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,897.36 : 1,212,845.22 = 496,932.34 : x
  2. Step 2: Convert to fraction form
    878,897.36/1,212,845.22 = 496,932.34/x
  3. Step 3: Cross multiply
    878,897.36x = 1,212,845.22 × 496,932.34
  4. Step 4: Simplify right side
    878,897.36x = 602,702,013,232.42
  5. Step 5: Solve for x
    x = 602,702,013,232.42/878,897.36
  6. Step 6: Final answer
    x = 685,747.89

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Double scale
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1.5x scale

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.