Home / 930,897.90-1,396,318.89-257,020.32

Finding the Fourth Proportional to 930,897.90, 1,396,318.89 and 257,020.32

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Solution

The fourth proportional to 930,897.90, 1,396,318.89 and 257,020.32 is: 385,522.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,897.90 : 1,396,318.89 = 257,020.32 : x
  2. Step 2: Convert to fraction form
    930,897.90/1,396,318.89 = 257,020.32/x
  3. Step 3: Cross multiply
    930,897.90x = 1,396,318.89 × 257,020.32
  4. Step 4: Simplify right side
    930,897.90x = 358,882,327,929.85
  5. Step 5: Solve for x
    x = 358,882,327,929.85/930,897.90
  6. Step 6: Final answer
    x = 385,522.76

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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.