Home / 985,558.86-1,478,340.72-275,585.76

Finding the Fourth Proportional to 985,558.86, 1,478,340.72 and 275,585.76

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Solution

The fourth proportional to 985,558.86, 1,478,340.72 and 275,585.76 is: 413,379.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,558.86 : 1,478,340.72 = 275,585.76 : x
  2. Step 2: Convert to fraction form
    985,558.86/1,478,340.72 = 275,585.76/x
  3. Step 3: Cross multiply
    985,558.86x = 1,478,340.72 × 275,585.76
  4. Step 4: Simplify right side
    985,558.86x = 407,409,650,860.15
  5. Step 5: Solve for x
    x = 407,409,650,860.15/985,558.86
  6. Step 6: Final answer
    x = 413,379.32

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Double scale
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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.