Home / 843,145.94-1,163,511.95-480,686.54

Finding the Fourth Proportional to 843,145.94, 1,163,511.95 and 480,686.54

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Solution

The fourth proportional to 843,145.94, 1,163,511.95 and 480,686.54 is: 663,330.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,145.94 : 1,163,511.95 = 480,686.54 : x
  2. Step 2: Convert to fraction form
    843,145.94/1,163,511.95 = 480,686.54/x
  3. Step 3: Cross multiply
    843,145.94x = 1,163,511.95 × 480,686.54
  4. Step 4: Simplify right side
    843,145.94x = 559,284,525,273.16
  5. Step 5: Solve for x
    x = 559,284,525,273.16/843,145.94
  6. Step 6: Final answer
    x = 663,330.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.