Home / 972,056.80-1,458,085.20-615,138.40

Finding the Fourth Proportional to 972,056.80, 1,458,085.20 and 615,138.40

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Solution

The fourth proportional to 972,056.80, 1,458,085.20 and 615,138.40 is: 922,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,056.80 : 1,458,085.20 = 615,138.40 : x
  2. Step 2: Convert to fraction form
    972,056.80/1,458,085.20 = 615,138.40/x
  3. Step 3: Cross multiply
    972,056.80x = 1,458,085.20 × 615,138.40
  4. Step 4: Simplify right side
    972,056.80x = 896,924,196,991.68
  5. Step 5: Solve for x
    x = 896,924,196,991.68/972,056.80
  6. Step 6: Final answer
    x = 922,707.60

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Similar ratio
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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.