Home / 389,229.68-537,441-304,587.92

Finding the Fourth Proportional to 389,229.68, 537,441 and 304,587.92

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Solution

The fourth proportional to 389,229.68, 537,441 and 304,587.92 is: 420,569.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,229.68 : 537,441 = 304,587.92 : x
  2. Step 2: Convert to fraction form
    389,229.68/537,441 = 304,587.92/x
  3. Step 3: Cross multiply
    389,229.68x = 537,441 × 304,587.92
  4. Step 4: Simplify right side
    389,229.68x = 163,698,036,312.72
  5. Step 5: Solve for x
    x = 163,698,036,312.72/389,229.68
  6. Step 6: Final answer
    x = 420,569.25

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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.