Home / 422,721.40-634,082.10-370,233.40

Finding the Fourth Proportional to 422,721.40, 634,082.10 and 370,233.40

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Solution

The fourth proportional to 422,721.40, 634,082.10 and 370,233.40 is: 555,350.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,721.40 : 634,082.10 = 370,233.40 : x
  2. Step 2: Convert to fraction form
    422,721.40/634,082.10 = 370,233.40/x
  3. Step 3: Cross multiply
    422,721.40x = 634,082.10 × 370,233.40
  4. Step 4: Simplify right side
    422,721.40x = 234,758,371,762.14
  5. Step 5: Solve for x
    x = 234,758,371,762.14/422,721.40
  6. Step 6: Final answer
    x = 555,350.10

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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.