Home / 985,295.68-1,478,333.92-512,279.36

Finding the Fourth Proportional to 985,295.68, 1,478,333.92 and 512,279.36

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Solution

The fourth proportional to 985,295.68, 1,478,333.92 and 512,279.36 is: 768,622.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,295.68 : 1,478,333.92 = 512,279.36 : x
  2. Step 2: Convert to fraction form
    985,295.68/1,478,333.92 = 512,279.36/x
  3. Step 3: Cross multiply
    985,295.68x = 1,478,333.92 × 512,279.36
  4. Step 4: Simplify right side
    985,295.68x = 757,319,954,403.89
  5. Step 5: Solve for x
    x = 757,319,954,403.89/985,295.68
  6. Step 6: Final answer
    x = 768,622.02

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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.