Home / 779,970.06-1,169,807.13-380,208.78

Finding the Fourth Proportional to 779,970.06, 1,169,807.13 and 380,208.78

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Solution

The fourth proportional to 779,970.06, 1,169,807.13 and 380,208.78 is: 570,241.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,970.06 : 1,169,807.13 = 380,208.78 : x
  2. Step 2: Convert to fraction form
    779,970.06/1,169,807.13 = 380,208.78/x
  3. Step 3: Cross multiply
    779,970.06x = 1,169,807.13 × 380,208.78
  4. Step 4: Simplify right side
    779,970.06x = 444,770,941,732.60
  5. Step 5: Solve for x
    x = 444,770,941,732.60/779,970.06
  6. Step 6: Final answer
    x = 570,241.04

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1.5x scale

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.