Home / 804,646.20-1,207,890.90-472,409.40

Finding the Fourth Proportional to 804,646.20, 1,207,890.90 and 472,409.40

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Solution

The fourth proportional to 804,646.20, 1,207,890.90 and 472,409.40 is: 709,155.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,646.20 : 1,207,890.90 = 472,409.40 : x
  2. Step 2: Convert to fraction form
    804,646.20/1,207,890.90 = 472,409.40/x
  3. Step 3: Cross multiply
    804,646.20x = 1,207,890.90 × 472,409.40
  4. Step 4: Simplify right side
    804,646.20x = 570,619,015,334.46
  5. Step 5: Solve for x
    x = 570,619,015,334.46/804,646.20
  6. Step 6: Final answer
    x = 709,155.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.