Home / 987,105.60-1,480,312.80-513,633.60

Finding the Fourth Proportional to 987,105.60, 1,480,312.80 and 513,633.60

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Solution

The fourth proportional to 987,105.60, 1,480,312.80 and 513,633.60 is: 770,270.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,105.60 : 1,480,312.80 = 513,633.60 : x
  2. Step 2: Convert to fraction form
    987,105.60/1,480,312.80 = 513,633.60/x
  3. Step 3: Cross multiply
    987,105.60x = 1,480,312.80 × 513,633.60
  4. Step 4: Simplify right side
    987,105.60x = 760,338,392,590.08
  5. Step 5: Solve for x
    x = 760,338,392,590.08/987,105.60
  6. Step 6: Final answer
    x = 770,270.57

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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.