Home / 880,117.90-1,321,028.25-425,028.11

Finding the Fourth Proportional to 880,117.90, 1,321,028.25 and 425,028.11

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Solution

The fourth proportional to 880,117.90, 1,321,028.25 and 425,028.11 is: 637,953.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,117.90 : 1,321,028.25 = 425,028.11 : x
  2. Step 2: Convert to fraction form
    880,117.90/1,321,028.25 = 425,028.11/x
  3. Step 3: Cross multiply
    880,117.90x = 1,321,028.25 × 425,028.11
  4. Step 4: Simplify right side
    880,117.90x = 561,474,133,748.97
  5. Step 5: Solve for x
    x = 561,474,133,748.97/880,117.90
  6. Step 6: Final answer
    x = 637,953.32

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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.