Home / 821,495.34-1,133,651.07-458,924.40

Finding the Fourth Proportional to 821,495.34, 1,133,651.07 and 458,924.40

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Solution

The fourth proportional to 821,495.34, 1,133,651.07 and 458,924.40 is: 633,308.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,495.34 : 1,133,651.07 = 458,924.40 : x
  2. Step 2: Convert to fraction form
    821,495.34/1,133,651.07 = 458,924.40/x
  3. Step 3: Cross multiply
    821,495.34x = 1,133,651.07 × 458,924.40
  4. Step 4: Simplify right side
    821,495.34x = 520,260,137,109.11
  5. Step 5: Solve for x
    x = 520,260,137,109.11/821,495.34
  6. Step 6: Final answer
    x = 633,308.69

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Double scale
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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.