Home / 813,341.52-1,121,009.28-540,922.08

Finding the Fourth Proportional to 813,341.52, 1,121,009.28 and 540,922.08

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Solution

The fourth proportional to 813,341.52, 1,121,009.28 and 540,922.08 is: 745,540.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,341.52 : 1,121,009.28 = 540,922.08 : x
  2. Step 2: Convert to fraction form
    813,341.52/1,121,009.28 = 540,922.08/x
  3. Step 3: Cross multiply
    813,341.52x = 1,121,009.28 × 540,922.08
  4. Step 4: Simplify right side
    813,341.52x = 606,378,671,436.90
  5. Step 5: Solve for x
    x = 606,378,671,436.90/813,341.52
  6. Step 6: Final answer
    x = 745,540.04

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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.