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Finding the Fourth Proportional to 581,992.96, 802,695.16 and 378,109.48

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Solution

The fourth proportional to 581,992.96, 802,695.16 and 378,109.48 is: 521,495.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,992.96 : 802,695.16 = 378,109.48 : x
  2. Step 2: Convert to fraction form
    581,992.96/802,695.16 = 378,109.48/x
  3. Step 3: Cross multiply
    581,992.96x = 802,695.16 × 378,109.48
  4. Step 4: Simplify right side
    581,992.96x = 303,506,649,546.12
  5. Step 5: Solve for x
    x = 303,506,649,546.12/581,992.96
  6. Step 6: Final answer
    x = 521,495.40

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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.