Home / 821,670.40-1,233,772.80-448,422.40

Finding the Fourth Proportional to 821,670.40, 1,233,772.80 and 448,422.40

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Solution

The fourth proportional to 821,670.40, 1,233,772.80 and 448,422.40 is: 673,325.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,670.40 : 1,233,772.80 = 448,422.40 : x
  2. Step 2: Convert to fraction form
    821,670.40/1,233,772.80 = 448,422.40/x
  3. Step 3: Cross multiply
    821,670.40x = 1,233,772.80 × 448,422.40
  4. Step 4: Simplify right side
    821,670.40x = 553,251,360,030.72
  5. Step 5: Solve for x
    x = 553,251,360,030.72/821,670.40
  6. Step 6: Final answer
    x = 673,325.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.