Home / 771,312.76-1,157,715.45-372,234.46

Finding the Fourth Proportional to 771,312.76, 1,157,715.45 and 372,234.46

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Solution

The fourth proportional to 771,312.76, 1,157,715.45 and 372,234.46 is: 558,711.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,312.76 : 1,157,715.45 = 372,234.46 : x
  2. Step 2: Convert to fraction form
    771,312.76/1,157,715.45 = 372,234.46/x
  3. Step 3: Cross multiply
    771,312.76x = 1,157,715.45 × 372,234.46
  4. Step 4: Simplify right side
    771,312.76x = 430,941,585,364.41
  5. Step 5: Solve for x
    x = 430,941,585,364.41/771,312.76
  6. Step 6: Final answer
    x = 558,711.86

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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.