Home / 790,138.96-1,090,384.14-427,554.88

Finding the Fourth Proportional to 790,138.96, 1,090,384.14 and 427,554.88

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Solution

The fourth proportional to 790,138.96, 1,090,384.14 and 427,554.88 is: 590,021.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,138.96 : 1,090,384.14 = 427,554.88 : x
  2. Step 2: Convert to fraction form
    790,138.96/1,090,384.14 = 427,554.88/x
  3. Step 3: Cross multiply
    790,138.96x = 1,090,384.14 × 427,554.88
  4. Step 4: Simplify right side
    790,138.96x = 466,199,060,131.60
  5. Step 5: Solve for x
    x = 466,199,060,131.60/790,138.96
  6. Step 6: Final answer
    x = 590,021.61

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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.