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Finding the Fourth Proportional to 624,492.80, 936,739.20 and 615,161.60

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Solution

The fourth proportional to 624,492.80, 936,739.20 and 615,161.60 is: 922,742.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,492.80 : 936,739.20 = 615,161.60 : x
  2. Step 2: Convert to fraction form
    624,492.80/936,739.20 = 615,161.60/x
  3. Step 3: Cross multiply
    624,492.80x = 936,739.20 × 615,161.60
  4. Step 4: Simplify right side
    624,492.80x = 576,245,985,054.72
  5. Step 5: Solve for x
    x = 576,245,985,054.72/624,492.80
  6. Step 6: Final answer
    x = 922,742.40

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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.