Home / 813,362.40-1,122,440.22-450,809.64

Finding the Fourth Proportional to 813,362.40, 1,122,440.22 and 450,809.64

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Solution

The fourth proportional to 813,362.40, 1,122,440.22 and 450,809.64 is: 622,117.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,362.40 : 1,122,440.22 = 450,809.64 : x
  2. Step 2: Convert to fraction form
    813,362.40/1,122,440.22 = 450,809.64/x
  3. Step 3: Cross multiply
    813,362.40x = 1,122,440.22 × 450,809.64
  4. Step 4: Simplify right side
    813,362.40x = 506,006,871,499.72
  5. Step 5: Solve for x
    x = 506,006,871,499.72/813,362.40
  6. Step 6: Final answer
    x = 622,117.36

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Double scale
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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.