Home / 649,826.40-974,739.60-492,362.40

Finding the Fourth Proportional to 649,826.40, 974,739.60 and 492,362.40

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Solution

The fourth proportional to 649,826.40, 974,739.60 and 492,362.40 is: 738,543.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,826.40 : 974,739.60 = 492,362.40 : x
  2. Step 2: Convert to fraction form
    649,826.40/974,739.60 = 492,362.40/x
  3. Step 3: Cross multiply
    649,826.40x = 974,739.60 × 492,362.40
  4. Step 4: Simplify right side
    649,826.40x = 479,925,128,831.04
  5. Step 5: Solve for x
    x = 479,925,128,831.04/649,826.40
  6. Step 6: Final answer
    x = 738,543.60

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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.