Home / 821,090.48-1,133,102.63-458,511.39

Finding the Fourth Proportional to 821,090.48, 1,133,102.63 and 458,511.39

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Solution

The fourth proportional to 821,090.48, 1,133,102.63 and 458,511.39 is: 632,744.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,090.48 : 1,133,102.63 = 458,511.39 : x
  2. Step 2: Convert to fraction form
    821,090.48/1,133,102.63 = 458,511.39/x
  3. Step 3: Cross multiply
    821,090.48x = 1,133,102.63 × 458,511.39
  4. Step 4: Simplify right side
    821,090.48x = 519,540,459,601.40
  5. Step 5: Solve for x
    x = 519,540,459,601.40/821,090.48
  6. Step 6: Final answer
    x = 632,744.47

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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.