Home / 820,985.38-1,132,979.07-458,396.98

Finding the Fourth Proportional to 820,985.38, 1,132,979.07 and 458,396.98

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Solution

The fourth proportional to 820,985.38, 1,132,979.07 and 458,396.98 is: 632,598.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,985.38 : 1,132,979.07 = 458,396.98 : x
  2. Step 2: Convert to fraction form
    820,985.38/1,132,979.07 = 458,396.98/x
  3. Step 3: Cross multiply
    820,985.38x = 1,132,979.07 × 458,396.98
  4. Step 4: Simplify right side
    820,985.38x = 519,354,184,091.21
  5. Step 5: Solve for x
    x = 519,354,184,091.21/820,985.38
  6. Step 6: Final answer
    x = 632,598.58

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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.