Home / 1,313,639.82-1,970,518.45-402,756.75

Finding the Fourth Proportional to 1,313,639.82, 1,970,518.45 and 402,756.75

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Solution

The fourth proportional to 1,313,639.82, 1,970,518.45 and 402,756.75 is: 604,153.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,639.82 : 1,970,518.45 = 402,756.75 : x
  2. Step 2: Convert to fraction form
    1,313,639.82/1,970,518.45 = 402,756.75/x
  3. Step 3: Cross multiply
    1,313,639.82x = 1,970,518.45 × 402,756.75
  4. Step 4: Simplify right side
    1,313,639.82x = 793,639,606,737.04
  5. Step 5: Solve for x
    x = 793,639,606,737.04/1,313,639.82
  6. Step 6: Final answer
    x = 604,153.13

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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.