Home / 790,191.55-1,090,464.35-427,615.38

Finding the Fourth Proportional to 790,191.55, 1,090,464.35 and 427,615.38

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Solution

The fourth proportional to 790,191.55, 1,090,464.35 and 427,615.38 is: 590,109.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,191.55 : 1,090,464.35 = 427,615.38 : x
  2. Step 2: Convert to fraction form
    790,191.55/1,090,464.35 = 427,615.38/x
  3. Step 3: Cross multiply
    790,191.55x = 1,090,464.35 × 427,615.38
  4. Step 4: Simplify right side
    790,191.55x = 466,299,325,263.63
  5. Step 5: Solve for x
    x = 466,299,325,263.63/790,191.55
  6. Step 6: Final answer
    x = 590,109.23

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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.