Home / 790,784.04-1,091,287.24-428,207.90

Finding the Fourth Proportional to 790,784.04, 1,091,287.24 and 428,207.90

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Solution

The fourth proportional to 790,784.04, 1,091,287.24 and 428,207.90 is: 590,929.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,784.04 : 1,091,287.24 = 428,207.90 : x
  2. Step 2: Convert to fraction form
    790,784.04/1,091,287.24 = 428,207.90/x
  3. Step 3: Cross multiply
    790,784.04x = 1,091,287.24 × 428,207.90
  4. Step 4: Simplify right side
    790,784.04x = 467,297,817,337.20
  5. Step 5: Solve for x
    x = 467,297,817,337.20/790,784.04
  6. Step 6: Final answer
    x = 590,929.75

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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.