Home / 1,152,783.20-1,726,971.60-620,127.20

Finding the Fourth Proportional to 1,152,783.20, 1,726,971.60 and 620,127.20

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Solution

The fourth proportional to 1,152,783.20, 1,726,971.60 and 620,127.20 is: 929,005.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,783.20 : 1,726,971.60 = 620,127.20 : x
  2. Step 2: Convert to fraction form
    1,152,783.20/1,726,971.60 = 620,127.20/x
  3. Step 3: Cross multiply
    1,152,783.20x = 1,726,971.60 × 620,127.20
  4. Step 4: Simplify right side
    1,152,783.20x = 1,070,942,062,787.52
  5. Step 5: Solve for x
    x = 1,070,942,062,787.52/1,152,783.20
  6. Step 6: Final answer
    x = 929,005.61

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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.