Home / 790,620.24-1,091,056.64-428,044.36

Finding the Fourth Proportional to 790,620.24, 1,091,056.64 and 428,044.36

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Solution

The fourth proportional to 790,620.24, 1,091,056.64 and 428,044.36 is: 590,701.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,620.24 : 1,091,056.64 = 428,044.36 : x
  2. Step 2: Convert to fraction form
    790,620.24/1,091,056.64 = 428,044.36/x
  3. Step 3: Cross multiply
    790,620.24x = 1,091,056.64 × 428,044.36
  4. Step 4: Simplify right side
    790,620.24x = 467,020,641,192.55
  5. Step 5: Solve for x
    x = 467,020,641,192.55/790,620.24
  6. Step 6: Final answer
    x = 590,701.60

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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.