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Finding the Fourth Proportional to 1,804,888.86, 2,490,749.55 and 988,962.90

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Solution

The fourth proportional to 1,804,888.86, 2,490,749.55 and 988,962.90 is: 1,364,770.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,804,888.86 : 2,490,749.55 = 988,962.90 : x
  2. Step 2: Convert to fraction form
    1,804,888.86/2,490,749.55 = 988,962.90/x
  3. Step 3: Cross multiply
    1,804,888.86x = 2,490,749.55 × 988,962.90
  4. Step 4: Simplify right side
    1,804,888.86x = 2,463,258,898,141.69
  5. Step 5: Solve for x
    x = 2,463,258,898,141.69/1,804,888.86
  6. Step 6: Final answer
    x = 1,364,770.40

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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.