Home / 753,289.02-1,039,769.22-447,415.20

Finding the Fourth Proportional to 753,289.02, 1,039,769.22 and 447,415.20

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Solution

The fourth proportional to 753,289.02, 1,039,769.22 and 447,415.20 is: 617,569.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,289.02 : 1,039,769.22 = 447,415.20 : x
  2. Step 2: Convert to fraction form
    753,289.02/1,039,769.22 = 447,415.20/x
  3. Step 3: Cross multiply
    753,289.02x = 1,039,769.22 × 447,415.20
  4. Step 4: Simplify right side
    753,289.02x = 465,208,553,520.14
  5. Step 5: Solve for x
    x = 465,208,553,520.14/753,289.02
  6. Step 6: Final answer
    x = 617,569.81

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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.