Home / 912,005.20-1,368,007.80-534,091.60

Finding the Fourth Proportional to 912,005.20, 1,368,007.80 and 534,091.60

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Solution

The fourth proportional to 912,005.20, 1,368,007.80 and 534,091.60 is: 801,137.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,005.20 : 1,368,007.80 = 534,091.60 : x
  2. Step 2: Convert to fraction form
    912,005.20/1,368,007.80 = 534,091.60/x
  3. Step 3: Cross multiply
    912,005.20x = 1,368,007.80 × 534,091.60
  4. Step 4: Simplify right side
    912,005.20x = 730,641,474,714.48
  5. Step 5: Solve for x
    x = 730,641,474,714.48/912,005.20
  6. Step 6: Final answer
    x = 801,137.40

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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.