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Finding the Fourth Proportional to 658,683.32, 908,983.06 and 356,877.32

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Solution

The fourth proportional to 658,683.32, 908,983.06 and 356,877.32 is: 492,490.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,683.32 : 908,983.06 = 356,877.32 : x
  2. Step 2: Convert to fraction form
    658,683.32/908,983.06 = 356,877.32/x
  3. Step 3: Cross multiply
    658,683.32x = 908,983.06 × 356,877.32
  4. Step 4: Simplify right side
    658,683.32x = 324,395,438,378.20
  5. Step 5: Solve for x
    x = 324,395,438,378.20/658,683.32
  6. Step 6: Final answer
    x = 492,490.74

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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.