Home / 890,900.38-1,336,547.13-259,863.58

Finding the Fourth Proportional to 890,900.38, 1,336,547.13 and 259,863.58

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Solution

The fourth proportional to 890,900.38, 1,336,547.13 and 259,863.58 is: 389,852.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,900.38 : 1,336,547.13 = 259,863.58 : x
  2. Step 2: Convert to fraction form
    890,900.38/1,336,547.13 = 259,863.58/x
  3. Step 3: Cross multiply
    890,900.38x = 1,336,547.13 × 259,863.58
  4. Step 4: Simplify right side
    890,900.38x = 347,319,922,040.53
  5. Step 5: Solve for x
    x = 347,319,922,040.53/890,900.38
  6. Step 6: Final answer
    x = 389,852.70

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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.