Home / 1,127,932.80-1,692,129.60-380,054.40

Finding the Fourth Proportional to 1,127,932.80, 1,692,129.60 and 380,054.40

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Solution

The fourth proportional to 1,127,932.80, 1,692,129.60 and 380,054.40 is: 570,159.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,932.80 : 1,692,129.60 = 380,054.40 : x
  2. Step 2: Convert to fraction form
    1,127,932.80/1,692,129.60 = 380,054.40/x
  3. Step 3: Cross multiply
    1,127,932.80x = 1,692,129.60 × 380,054.40
  4. Step 4: Simplify right side
    1,127,932.80x = 643,101,299,850.24
  5. Step 5: Solve for x
    x = 643,101,299,850.24/1,127,932.80
  6. Step 6: Final answer
    x = 570,159.23

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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.