Home / 1,320,240.40-1,976,812.63-837,856.53

Finding the Fourth Proportional to 1,320,240.40, 1,976,812.63 and 837,856.53

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Solution

The fourth proportional to 1,320,240.40, 1,976,812.63 and 837,856.53 is: 1,254,533.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,240.40 : 1,976,812.63 = 837,856.53 : x
  2. Step 2: Convert to fraction form
    1,320,240.40/1,976,812.63 = 837,856.53/x
  3. Step 3: Cross multiply
    1,320,240.40x = 1,976,812.63 × 837,856.53
  4. Step 4: Simplify right side
    1,320,240.40x = 1,656,285,368,537.33
  5. Step 5: Solve for x
    x = 1,656,285,368,537.33/1,320,240.40
  6. Step 6: Final answer
    x = 1,254,533.17

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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.