Home / 997,910.40-1,496,719.80-287,864.40

Finding the Fourth Proportional to 997,910.40, 1,496,719.80 and 287,864.40

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Solution

The fourth proportional to 997,910.40, 1,496,719.80 and 287,864.40 is: 431,754.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,910.40 : 1,496,719.80 = 287,864.40 : x
  2. Step 2: Convert to fraction form
    997,910.40/1,496,719.80 = 287,864.40/x
  3. Step 3: Cross multiply
    997,910.40x = 1,496,719.80 × 287,864.40
  4. Step 4: Simplify right side
    997,910.40x = 430,852,347,195.12
  5. Step 5: Solve for x
    x = 430,852,347,195.12/997,910.40
  6. Step 6: Final answer
    x = 431,754.54

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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.