Home / 985,285.09-1,478,590.62-345,594.61

Finding the Fourth Proportional to 985,285.09, 1,478,590.62 and 345,594.61

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Solution

The fourth proportional to 985,285.09, 1,478,590.62 and 345,594.61 is: 518,624.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,285.09 : 1,478,590.62 = 345,594.61 : x
  2. Step 2: Convert to fraction form
    985,285.09/1,478,590.62 = 345,594.61/x
  3. Step 3: Cross multiply
    985,285.09x = 1,478,590.62 × 345,594.61
  4. Step 4: Simplify right side
    985,285.09x = 510,992,948,668.56
  5. Step 5: Solve for x
    x = 510,992,948,668.56/985,285.09
  6. Step 6: Final answer
    x = 518,624.46

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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.