Home / 771,353.37-1,157,106.61-285,162.95

Finding the Fourth Proportional to 771,353.37, 1,157,106.61 and 285,162.95

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Solution

The fourth proportional to 771,353.37, 1,157,106.61 and 285,162.95 is: 427,772.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,353.37 : 1,157,106.61 = 285,162.95 : x
  2. Step 2: Convert to fraction form
    771,353.37/1,157,106.61 = 285,162.95/x
  3. Step 3: Cross multiply
    771,353.37x = 1,157,106.61 × 285,162.95
  4. Step 4: Simplify right side
    771,353.37x = 329,963,937,621.32
  5. Step 5: Solve for x
    x = 329,963,937,621.32/771,353.37
  6. Step 6: Final answer
    x = 427,772.73

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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.