Home / 1,243,663.60-1,855,795.73-1,109,622.40

Finding the Fourth Proportional to 1,243,663.60, 1,855,795.73 and 1,109,622.40

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Solution

The fourth proportional to 1,243,663.60, 1,855,795.73 and 1,109,622.40 is: 1,655,779.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,663.60 : 1,855,795.73 = 1,109,622.40 : x
  2. Step 2: Convert to fraction form
    1,243,663.60/1,855,795.73 = 1,109,622.40/x
  3. Step 3: Cross multiply
    1,243,663.60x = 1,855,795.73 × 1,109,622.40
  4. Step 4: Simplify right side
    1,243,663.60x = 2,059,232,511,832.35
  5. Step 5: Solve for x
    x = 2,059,232,511,832.35/1,243,663.60
  6. Step 6: Final answer
    x = 1,655,779.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.