Home / 870,064.74-1,305,000.32-270,975.78

Finding the Fourth Proportional to 870,064.74, 1,305,000.32 and 270,975.78

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Solution

The fourth proportional to 870,064.74, 1,305,000.32 and 270,975.78 is: 406,433.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,064.74 : 1,305,000.32 = 270,975.78 : x
  2. Step 2: Convert to fraction form
    870,064.74/1,305,000.32 = 270,975.78/x
  3. Step 3: Cross multiply
    870,064.74x = 1,305,000.32 × 270,975.78
  4. Step 4: Simplify right side
    870,064.74x = 353,623,478,257.37
  5. Step 5: Solve for x
    x = 353,623,478,257.37/870,064.74
  6. Step 6: Final answer
    x = 406,433.52

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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.