Home / 891,636.34-1,230,458.16-509,671.39

Finding the Fourth Proportional to 891,636.34, 1,230,458.16 and 509,671.39

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Solution

The fourth proportional to 891,636.34, 1,230,458.16 and 509,671.39 is: 703,346.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,636.34 : 1,230,458.16 = 509,671.39 : x
  2. Step 2: Convert to fraction form
    891,636.34/1,230,458.16 = 509,671.39/x
  3. Step 3: Cross multiply
    891,636.34x = 1,230,458.16 × 509,671.39
  4. Step 4: Simplify right side
    891,636.34x = 627,129,320,744.04
  5. Step 5: Solve for x
    x = 627,129,320,744.04/891,636.34
  6. Step 6: Final answer
    x = 703,346.52

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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.