Home / 790,904.48-1,091,442.69-428,320.04

Finding the Fourth Proportional to 790,904.48, 1,091,442.69 and 428,320.04

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Solution

The fourth proportional to 790,904.48, 1,091,442.69 and 428,320.04 is: 591,078.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,904.48 : 1,091,442.69 = 428,320.04 : x
  2. Step 2: Convert to fraction form
    790,904.48/1,091,442.69 = 428,320.04/x
  3. Step 3: Cross multiply
    790,904.48x = 1,091,442.69 × 428,320.04
  4. Step 4: Simplify right side
    790,904.48x = 467,486,771,181.29
  5. Step 5: Solve for x
    x = 467,486,771,181.29/790,904.48
  6. Step 6: Final answer
    x = 591,078.68

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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.