Home / 1,385,632.43-2,078,423.99-438,978.54

Finding the Fourth Proportional to 1,385,632.43, 2,078,423.99 and 438,978.54

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Solution

The fourth proportional to 1,385,632.43, 2,078,423.99 and 438,978.54 is: 658,460.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,632.43 : 2,078,423.99 = 438,978.54 : x
  2. Step 2: Convert to fraction form
    1,385,632.43/2,078,423.99 = 438,978.54/x
  3. Step 3: Cross multiply
    1,385,632.43x = 2,078,423.99 × 438,978.54
  4. Step 4: Simplify right side
    1,385,632.43x = 912,383,528,631.18
  5. Step 5: Solve for x
    x = 912,383,528,631.18/1,385,632.43
  6. Step 6: Final answer
    x = 658,460.00

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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.