Home / 723,764.40-1,085,646.60-513,812.40

Finding the Fourth Proportional to 723,764.40, 1,085,646.60 and 513,812.40

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Solution

The fourth proportional to 723,764.40, 1,085,646.60 and 513,812.40 is: 770,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,764.40 : 1,085,646.60 = 513,812.40 : x
  2. Step 2: Convert to fraction form
    723,764.40/1,085,646.60 = 513,812.40/x
  3. Step 3: Cross multiply
    723,764.40x = 1,085,646.60 × 513,812.40
  4. Step 4: Simplify right side
    723,764.40x = 557,818,685,097.84
  5. Step 5: Solve for x
    x = 557,818,685,097.84/723,764.40
  6. Step 6: Final answer
    x = 770,718.60

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Double scale
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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.