Home / 919,555.92-1,379,508.84-288,300.24

Finding the Fourth Proportional to 919,555.92, 1,379,508.84 and 288,300.24

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Solution

The fourth proportional to 919,555.92, 1,379,508.84 and 288,300.24 is: 432,505.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,555.92 : 1,379,508.84 = 288,300.24 : x
  2. Step 2: Convert to fraction form
    919,555.92/1,379,508.84 = 288,300.24/x
  3. Step 3: Cross multiply
    919,555.92x = 1,379,508.84 × 288,300.24
  4. Step 4: Simplify right side
    919,555.92x = 397,712,729,654.12
  5. Step 5: Solve for x
    x = 397,712,729,654.12/919,555.92
  6. Step 6: Final answer
    x = 432,505.21

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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.