Home / 658,261.35-908,395.47-356,455.35

Finding the Fourth Proportional to 658,261.35, 908,395.47 and 356,455.35

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Solution

The fourth proportional to 658,261.35, 908,395.47 and 356,455.35 is: 491,905.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,261.35 : 908,395.47 = 356,455.35 : x
  2. Step 2: Convert to fraction form
    658,261.35/908,395.47 = 356,455.35/x
  3. Step 3: Cross multiply
    658,261.35x = 908,395.47 × 356,455.35
  4. Step 4: Simplify right side
    658,261.35x = 323,802,425,197.26
  5. Step 5: Solve for x
    x = 323,802,425,197.26/658,261.35
  6. Step 6: Final answer
    x = 491,905.57

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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.