Home / 389,727.36-537,848.64-219,899.52

Finding the Fourth Proportional to 389,727.36, 537,848.64 and 219,899.52

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Solution

The fourth proportional to 389,727.36, 537,848.64 and 219,899.52 is: 303,475.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,727.36 : 537,848.64 = 219,899.52 : x
  2. Step 2: Convert to fraction form
    389,727.36/537,848.64 = 219,899.52/x
  3. Step 3: Cross multiply
    389,727.36x = 537,848.64 × 219,899.52
  4. Step 4: Simplify right side
    389,727.36x = 118,272,657,768.65
  5. Step 5: Solve for x
    x = 118,272,657,768.65/389,727.36
  6. Step 6: Final answer
    x = 303,475.38

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1.5x scale

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.