Home / 813,344.49-1,122,415.38-450,822.81

Finding the Fourth Proportional to 813,344.49, 1,122,415.38 and 450,822.81

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Solution

The fourth proportional to 813,344.49, 1,122,415.38 and 450,822.81 is: 622,135.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,344.49 : 1,122,415.38 = 450,822.81 : x
  2. Step 2: Convert to fraction form
    813,344.49/1,122,415.38 = 450,822.81/x
  3. Step 3: Cross multiply
    813,344.49x = 1,122,415.38 × 450,822.81
  4. Step 4: Simplify right side
    813,344.49x = 506,010,455,598.82
  5. Step 5: Solve for x
    x = 506,010,455,598.82/813,344.49
  6. Step 6: Final answer
    x = 622,135.47

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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.