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Finding the Fourth Proportional to 654,771.90, 903,576.15 and 368,292.18

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Solution

The fourth proportional to 654,771.90, 903,576.15 and 368,292.18 is: 508,238.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,771.90 : 903,576.15 = 368,292.18 : x
  2. Step 2: Convert to fraction form
    654,771.90/903,576.15 = 368,292.18/x
  3. Step 3: Cross multiply
    654,771.90x = 903,576.15 × 368,292.18
  4. Step 4: Simplify right side
    654,771.90x = 332,780,030,079.51
  5. Step 5: Solve for x
    x = 332,780,030,079.51/654,771.90
  6. Step 6: Final answer
    x = 508,238.11

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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.