Home / 1,280,844.13-1,921,581.51-902,503.72

Finding the Fourth Proportional to 1,280,844.13, 1,921,581.51 and 902,503.72

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Solution

The fourth proportional to 1,280,844.13, 1,921,581.51 and 902,503.72 is: 1,353,977.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,844.13 : 1,921,581.51 = 902,503.72 : x
  2. Step 2: Convert to fraction form
    1,280,844.13/1,921,581.51 = 902,503.72/x
  3. Step 3: Cross multiply
    1,280,844.13x = 1,921,581.51 × 902,503.72
  4. Step 4: Simplify right side
    1,280,844.13x = 1,734,234,456,254.26
  5. Step 5: Solve for x
    x = 1,734,234,456,254.26/1,280,844.13
  6. Step 6: Final answer
    x = 1,353,977.75

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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.