Home / 790,587.68-1,091,012.76-428,015.36

Finding the Fourth Proportional to 790,587.68, 1,091,012.76 and 428,015.36

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Solution

The fourth proportional to 790,587.68, 1,091,012.76 and 428,015.36 is: 590,662.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,587.68 : 1,091,012.76 = 428,015.36 : x
  2. Step 2: Convert to fraction form
    790,587.68/1,091,012.76 = 428,015.36/x
  3. Step 3: Cross multiply
    790,587.68x = 1,091,012.76 × 428,015.36
  4. Step 4: Simplify right side
    790,587.68x = 466,970,219,235.99
  5. Step 5: Solve for x
    x = 466,970,219,235.99/790,587.68
  6. Step 6: Final answer
    x = 590,662.15

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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.