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Finding the Fourth Proportional to 630,301.45, 945,460.40 and 209,577.32

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Solution

The fourth proportional to 630,301.45, 945,460.40 and 209,577.32 is: 314,368.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,301.45 : 945,460.40 = 209,577.32 : x
  2. Step 2: Convert to fraction form
    630,301.45/945,460.40 = 209,577.32/x
  3. Step 3: Cross multiply
    630,301.45x = 945,460.40 × 209,577.32
  4. Step 4: Simplify right side
    630,301.45x = 198,147,056,798.13
  5. Step 5: Solve for x
    x = 198,147,056,798.13/630,301.45
  6. Step 6: Final answer
    x = 314,368.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.