Home / 790,916.24-1,091,459.40-428,334.32

Finding the Fourth Proportional to 790,916.24, 1,091,459.40 and 428,334.32

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Solution

The fourth proportional to 790,916.24, 1,091,459.40 and 428,334.32 is: 591,098.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,916.24 : 1,091,459.40 = 428,334.32 : x
  2. Step 2: Convert to fraction form
    790,916.24/1,091,459.40 = 428,334.32/x
  3. Step 3: Cross multiply
    790,916.24x = 1,091,459.40 × 428,334.32
  4. Step 4: Simplify right side
    790,916.24x = 467,509,519,906.61
  5. Step 5: Solve for x
    x = 467,509,519,906.61/790,916.24
  6. Step 6: Final answer
    x = 591,098.65

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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.