Home / 779,970.56-1,169,807.88-380,209.28

Finding the Fourth Proportional to 779,970.56, 1,169,807.88 and 380,209.28

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Solution

The fourth proportional to 779,970.56, 1,169,807.88 and 380,209.28 is: 570,241.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,970.56 : 1,169,807.88 = 380,209.28 : x
  2. Step 2: Convert to fraction form
    779,970.56/1,169,807.88 = 380,209.28/x
  3. Step 3: Cross multiply
    779,970.56x = 1,169,807.88 × 380,209.28
  4. Step 4: Simplify right side
    779,970.56x = 444,771,811,793.13
  5. Step 5: Solve for x
    x = 444,771,811,793.13/779,970.56
  6. Step 6: Final answer
    x = 570,241.79

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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.