Home / 5,475,944.40-8,214,305.40-1,689,421.20

Finding the Fourth Proportional to 5,475,944.40, 8,214,305.40 and 1,689,421.20

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Solution

The fourth proportional to 5,475,944.40, 8,214,305.40 and 1,689,421.20 is: 2,534,251.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475,944.40 : 8,214,305.40 = 1,689,421.20 : x
  2. Step 2: Convert to fraction form
    5,475,944.40/8,214,305.40 = 1,689,421.20/x
  3. Step 3: Cross multiply
    5,475,944.40x = 8,214,305.40 × 1,689,421.20
  4. Step 4: Simplify right side
    5,475,944.40x = 13,877,421,686,034.48
  5. Step 5: Solve for x
    x = 13,877,421,686,034.48/5,475,944.40
  6. Step 6: Final answer
    x = 2,534,251.75

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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.