Home / 1,679,073.69-2,518,637.90-480,991.35

Finding the Fourth Proportional to 1,679,073.69, 2,518,637.90 and 480,991.35

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Solution

The fourth proportional to 1,679,073.69, 2,518,637.90 and 480,991.35 is: 721,494.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,073.69 : 2,518,637.90 = 480,991.35 : x
  2. Step 2: Convert to fraction form
    1,679,073.69/2,518,637.90 = 480,991.35/x
  3. Step 3: Cross multiply
    1,679,073.69x = 2,518,637.90 × 480,991.35
  4. Step 4: Simplify right side
    1,679,073.69x = 1,211,443,050,722.10
  5. Step 5: Solve for x
    x = 1,211,443,050,722.10/1,679,073.69
  6. Step 6: Final answer
    x = 721,494.87

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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.