Home / 771,341.68-1,156,893.72-210,419.92

Finding the Fourth Proportional to 771,341.68, 1,156,893.72 and 210,419.92

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Solution

The fourth proportional to 771,341.68, 1,156,893.72 and 210,419.92 is: 315,597.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,341.68 : 1,156,893.72 = 210,419.92 : x
  2. Step 2: Convert to fraction form
    771,341.68/1,156,893.72 = 210,419.92/x
  3. Step 3: Cross multiply
    771,341.68x = 1,156,893.72 × 210,419.92
  4. Step 4: Simplify right side
    771,341.68x = 243,433,484,010.90
  5. Step 5: Solve for x
    x = 243,433,484,010.90/771,341.68
  6. Step 6: Final answer
    x = 315,597.47

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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.