Home / 786,927.48-1,085,921.48-447,388.44

Finding the Fourth Proportional to 786,927.48, 1,085,921.48 and 447,388.44

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Solution

The fourth proportional to 786,927.48, 1,085,921.48 and 447,388.44 is: 617,374.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,927.48 : 1,085,921.48 = 447,388.44 : x
  2. Step 2: Convert to fraction form
    786,927.48/1,085,921.48 = 447,388.44/x
  3. Step 3: Cross multiply
    786,927.48x = 1,085,921.48 × 447,388.44
  4. Step 4: Simplify right side
    786,927.48x = 485,828,716,899.69
  5. Step 5: Solve for x
    x = 485,828,716,899.69/786,927.48
  6. Step 6: Final answer
    x = 617,374.19

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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.