Home / 771,311.76-1,157,713.95-372,233.46

Finding the Fourth Proportional to 771,311.76, 1,157,713.95 and 372,233.46

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Solution

The fourth proportional to 771,311.76, 1,157,713.95 and 372,233.46 is: 558,710.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,311.76 : 1,157,713.95 = 372,233.46 : x
  2. Step 2: Convert to fraction form
    771,311.76/1,157,713.95 = 372,233.46/x
  3. Step 3: Cross multiply
    771,311.76x = 1,157,713.95 × 372,233.46
  4. Step 4: Simplify right side
    771,311.76x = 430,939,869,298.77
  5. Step 5: Solve for x
    x = 430,939,869,298.77/771,311.76
  6. Step 6: Final answer
    x = 558,710.36

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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.