Home / 398,235.57-549,027.77-385,852.29

Finding the Fourth Proportional to 398,235.57, 549,027.77 and 385,852.29

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Solution

The fourth proportional to 398,235.57, 549,027.77 and 385,852.29 is: 531,955.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,235.57 : 549,027.77 = 385,852.29 : x
  2. Step 2: Convert to fraction form
    398,235.57/549,027.77 = 385,852.29/x
  3. Step 3: Cross multiply
    398,235.57x = 549,027.77 × 385,852.29
  4. Step 4: Simplify right side
    398,235.57x = 211,843,620,398.83
  5. Step 5: Solve for x
    x = 211,843,620,398.83/398,235.57
  6. Step 6: Final answer
    x = 531,955.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.