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Finding the Fourth Proportional to 1,662,918.30, 2,294,830.62 and 898,971.84

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Solution

The fourth proportional to 1,662,918.30, 2,294,830.62 and 898,971.84 is: 1,240,582.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,662,918.30 : 2,294,830.62 = 898,971.84 : x
  2. Step 2: Convert to fraction form
    1,662,918.30/2,294,830.62 = 898,971.84/x
  3. Step 3: Cross multiply
    1,662,918.30x = 2,294,830.62 × 898,971.84
  4. Step 4: Simplify right side
    1,662,918.30x = 2,062,988,104,949.74
  5. Step 5: Solve for x
    x = 2,062,988,104,949.74/1,662,918.30
  6. Step 6: Final answer
    x = 1,240,582.96

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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.