Home / 890,530.48-1,335,810.32-259,478.96

Finding the Fourth Proportional to 890,530.48, 1,335,810.32 and 259,478.96

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Solution

The fourth proportional to 890,530.48, 1,335,810.32 and 259,478.96 is: 389,222.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,530.48 : 1,335,810.32 = 259,478.96 : x
  2. Step 2: Convert to fraction form
    890,530.48/1,335,810.32 = 259,478.96/x
  3. Step 3: Cross multiply
    890,530.48x = 1,335,810.32 × 259,478.96
  4. Step 4: Simplify right side
    890,530.48x = 346,614,672,590.87
  5. Step 5: Solve for x
    x = 346,614,672,590.87/890,530.48
  6. Step 6: Final answer
    x = 389,222.69

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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.