Home / 790,941.68-1,091,494.04-428,357.28

Finding the Fourth Proportional to 790,941.68, 1,091,494.04 and 428,357.28

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Solution

The fourth proportional to 790,941.68, 1,091,494.04 and 428,357.28 is: 591,130.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,941.68 : 1,091,494.04 = 428,357.28 : x
  2. Step 2: Convert to fraction form
    790,941.68/1,091,494.04 = 428,357.28/x
  3. Step 3: Cross multiply
    790,941.68x = 1,091,494.04 × 428,357.28
  4. Step 4: Simplify right side
    790,941.68x = 467,549,418,110.61
  5. Step 5: Solve for x
    x = 467,549,418,110.61/790,941.68
  6. Step 6: Final answer
    x = 591,130.08

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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.