Home / 1,110,459.72-1,665,430.79-311,818.35

Finding the Fourth Proportional to 1,110,459.72, 1,665,430.79 and 311,818.35

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Solution

The fourth proportional to 1,110,459.72, 1,665,430.79 and 311,818.35 is: 467,654.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,459.72 : 1,665,430.79 = 311,818.35 : x
  2. Step 2: Convert to fraction form
    1,110,459.72/1,665,430.79 = 311,818.35/x
  3. Step 3: Cross multiply
    1,110,459.72x = 1,665,430.79 × 311,818.35
  4. Step 4: Simplify right side
    1,110,459.72x = 519,311,879,417.91
  5. Step 5: Solve for x
    x = 519,311,879,417.91/1,110,459.72
  6. Step 6: Final answer
    x = 467,654.86

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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.