Home / 990,086.50-1,484,891.88-457,095.46

Finding the Fourth Proportional to 990,086.50, 1,484,891.88 and 457,095.46

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Solution

The fourth proportional to 990,086.50, 1,484,891.88 and 457,095.46 is: 685,533.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,086.50 : 1,484,891.88 = 457,095.46 : x
  2. Step 2: Convert to fraction form
    990,086.50/1,484,891.88 = 457,095.46/x
  3. Step 3: Cross multiply
    990,086.50x = 1,484,891.88 × 457,095.46
  4. Step 4: Simplify right side
    990,086.50x = 678,737,336,938.87
  5. Step 5: Solve for x
    x = 678,737,336,938.87/990,086.50
  6. Step 6: Final answer
    x = 685,533.37

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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.