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Finding the Fourth Proportional to 1,663,921.74, 2,296,204.50 and 899,973.48

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Solution

The fourth proportional to 1,663,921.74, 2,296,204.50 and 899,973.48 is: 1,241,959.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663,921.74 : 2,296,204.50 = 899,973.48 : x
  2. Step 2: Convert to fraction form
    1,663,921.74/2,296,204.50 = 899,973.48/x
  3. Step 3: Cross multiply
    1,663,921.74x = 2,296,204.50 × 899,973.48
  4. Step 4: Simplify right side
    1,663,921.74x = 2,066,523,154,656.66
  5. Step 5: Solve for x
    x = 2,066,523,154,656.66/1,663,921.74
  6. Step 6: Final answer
    x = 1,241,959.35

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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.