Home / 1,317,840.17-1,976,011.20-518,688.50

Finding the Fourth Proportional to 1,317,840.17, 1,976,011.20 and 518,688.50

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Solution

The fourth proportional to 1,317,840.17, 1,976,011.20 and 518,688.50 is: 777,737.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,840.17 : 1,976,011.20 = 518,688.50 : x
  2. Step 2: Convert to fraction form
    1,317,840.17/1,976,011.20 = 518,688.50/x
  3. Step 3: Cross multiply
    1,317,840.17x = 1,976,011.20 × 518,688.50
  4. Step 4: Simplify right side
    1,317,840.17x = 1,024,934,275,431.14
  5. Step 5: Solve for x
    x = 1,024,934,275,431.14/1,317,840.17
  6. Step 6: Final answer
    x = 777,737.93

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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.