Home / 891,635.34-1,230,456.78-509,670.39

Finding the Fourth Proportional to 891,635.34, 1,230,456.78 and 509,670.39

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Solution

The fourth proportional to 891,635.34, 1,230,456.78 and 509,670.39 is: 703,345.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,635.34 : 1,230,456.78 = 509,670.39 : x
  2. Step 2: Convert to fraction form
    891,635.34/1,230,456.78 = 509,670.39/x
  3. Step 3: Cross multiply
    891,635.34x = 1,230,456.78 × 509,670.39
  4. Step 4: Simplify right side
    891,635.34x = 627,127,386,940.74
  5. Step 5: Solve for x
    x = 627,127,386,940.74/891,635.34
  6. Step 6: Final answer
    x = 703,345.14

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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.