Home / 781,847.07-1,078,889.36-437,604.15

Finding the Fourth Proportional to 781,847.07, 1,078,889.36 and 437,604.15

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Solution

The fourth proportional to 781,847.07, 1,078,889.36 and 437,604.15 is: 603,860.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,847.07 : 1,078,889.36 = 437,604.15 : x
  2. Step 2: Convert to fraction form
    781,847.07/1,078,889.36 = 437,604.15/x
  3. Step 3: Cross multiply
    781,847.07x = 1,078,889.36 × 437,604.15
  4. Step 4: Simplify right side
    781,847.07x = 472,126,463,184.66
  5. Step 5: Solve for x
    x = 472,126,463,184.66/781,847.07
  6. Step 6: Final answer
    x = 603,860.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.