Home / 1,128,122.04-1,692,188.82-380,174.52

Finding the Fourth Proportional to 1,128,122.04, 1,692,188.82 and 380,174.52

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Solution

The fourth proportional to 1,128,122.04, 1,692,188.82 and 380,174.52 is: 570,263.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,122.04 : 1,692,188.82 = 380,174.52 : x
  2. Step 2: Convert to fraction form
    1,128,122.04/1,692,188.82 = 380,174.52/x
  3. Step 3: Cross multiply
    1,128,122.04x = 1,692,188.82 × 380,174.52
  4. Step 4: Simplify right side
    1,128,122.04x = 643,327,072,392.87
  5. Step 5: Solve for x
    x = 643,327,072,392.87/1,128,122.04
  6. Step 6: Final answer
    x = 570,263.72

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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.