Home / 781,634.84-1,078,579.85-437,450.24

Finding the Fourth Proportional to 781,634.84, 1,078,579.85 and 437,450.24

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Solution

The fourth proportional to 781,634.84, 1,078,579.85 and 437,450.24 is: 603,638.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,634.84 : 1,078,579.85 = 437,450.24 : x
  2. Step 2: Convert to fraction form
    781,634.84/1,078,579.85 = 437,450.24/x
  3. Step 3: Cross multiply
    781,634.84x = 1,078,579.85 × 437,450.24
  4. Step 4: Simplify right side
    781,634.84x = 471,825,006,661.51
  5. Step 5: Solve for x
    x = 471,825,006,661.51/781,634.84
  6. Step 6: Final answer
    x = 603,638.66

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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.