Home / 812,341.54-1,121,043.14-467,987.46

Finding the Fourth Proportional to 812,341.54, 1,121,043.14 and 467,987.46

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Solution

The fourth proportional to 812,341.54, 1,121,043.14 and 467,987.46 is: 645,829.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,341.54 : 1,121,043.14 = 467,987.46 : x
  2. Step 2: Convert to fraction form
    812,341.54/1,121,043.14 = 467,987.46/x
  3. Step 3: Cross multiply
    812,341.54x = 1,121,043.14 × 467,987.46
  4. Step 4: Simplify right side
    812,341.54x = 524,634,131,639.02
  5. Step 5: Solve for x
    x = 524,634,131,639.02/812,341.54
  6. Step 6: Final answer
    x = 645,829.50

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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.