Home / 1,279,321.49-1,919,439.12-549,538.10

Finding the Fourth Proportional to 1,279,321.49, 1,919,439.12 and 549,538.10

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Solution

The fourth proportional to 1,279,321.49, 1,919,439.12 and 549,538.10 is: 824,503.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,321.49 : 1,919,439.12 = 549,538.10 : x
  2. Step 2: Convert to fraction form
    1,279,321.49/1,919,439.12 = 549,538.10/x
  3. Step 3: Cross multiply
    1,279,321.49x = 1,919,439.12 × 549,538.10
  4. Step 4: Simplify right side
    1,279,321.49x = 1,054,804,929,616.01
  5. Step 5: Solve for x
    x = 1,054,804,929,616.01/1,279,321.49
  6. Step 6: Final answer
    x = 824,503.41

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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.