Home / 985,708.80-1,478,563.20-513,316.80

Finding the Fourth Proportional to 985,708.80, 1,478,563.20 and 513,316.80

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Solution

The fourth proportional to 985,708.80, 1,478,563.20 and 513,316.80 is: 769,975.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,708.80 : 1,478,563.20 = 513,316.80 : x
  2. Step 2: Convert to fraction form
    985,708.80/1,478,563.20 = 513,316.80/x
  3. Step 3: Cross multiply
    985,708.80x = 1,478,563.20 × 513,316.80
  4. Step 4: Simplify right side
    985,708.80x = 758,971,330,421.76
  5. Step 5: Solve for x
    x = 758,971,330,421.76/985,708.80
  6. Step 6: Final answer
    x = 769,975.20

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Similar ratio
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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.