Home / 790,585.68-1,091,010-428,013.36

Finding the Fourth Proportional to 790,585.68, 1,091,010 and 428,013.36

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Solution

The fourth proportional to 790,585.68, 1,091,010 and 428,013.36 is: 590,659.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,585.68 : 1,091,010 = 428,013.36 : x
  2. Step 2: Convert to fraction form
    790,585.68/1,091,010 = 428,013.36/x
  3. Step 3: Cross multiply
    790,585.68x = 1,091,010 × 428,013.36
  4. Step 4: Simplify right side
    790,585.68x = 466,966,855,893.60
  5. Step 5: Solve for x
    x = 466,966,855,893.60/790,585.68
  6. Step 6: Final answer
    x = 590,659.39

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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.