Home / 389,228.93-537,439.97-304,587.17

Finding the Fourth Proportional to 389,228.93, 537,439.97 and 304,587.17

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Solution

The fourth proportional to 389,228.93, 537,439.97 and 304,587.17 is: 420,568.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,228.93 : 537,439.97 = 304,587.17 : x
  2. Step 2: Convert to fraction form
    389,228.93/537,439.97 = 304,587.17/x
  3. Step 3: Cross multiply
    389,228.93x = 537,439.97 × 304,587.17
  4. Step 4: Simplify right side
    389,228.93x = 163,697,317,984.25
  5. Step 5: Solve for x
    x = 163,697,317,984.25/389,228.93
  6. Step 6: Final answer
    x = 420,568.22

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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.