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Finding the Fourth Proportional to 439,237.60, 658,856.40 and 368,378.80

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Solution

The fourth proportional to 439,237.60, 658,856.40 and 368,378.80 is: 552,568.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,237.60 : 658,856.40 = 368,378.80 : x
  2. Step 2: Convert to fraction form
    439,237.60/658,856.40 = 368,378.80/x
  3. Step 3: Cross multiply
    439,237.60x = 658,856.40 × 368,378.80
  4. Step 4: Simplify right side
    439,237.60x = 242,708,730,004.32
  5. Step 5: Solve for x
    x = 242,708,730,004.32/439,237.60
  6. Step 6: Final answer
    x = 552,568.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.