Home / 3,213,430.45-4,820,124.85-817,254.39

Finding the Fourth Proportional to 3,213,430.45, 4,820,124.85 and 817,254.39

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Solution

The fourth proportional to 3,213,430.45, 4,820,124.85 and 817,254.39 is: 1,225,876.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213,430.45 : 4,820,124.85 = 817,254.39 : x
  2. Step 2: Convert to fraction form
    3,213,430.45/4,820,124.85 = 817,254.39/x
  3. Step 3: Cross multiply
    3,213,430.45x = 4,820,124.85 × 817,254.39
  4. Step 4: Simplify right side
    3,213,430.45x = 3,939,268,210,042.92
  5. Step 5: Solve for x
    x = 3,939,268,210,042.92/3,213,430.45
  6. Step 6: Final answer
    x = 1,225,876.29

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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.