Home / 1,478,395.74-2,216,640.20-579,928.31

Finding the Fourth Proportional to 1,478,395.74, 2,216,640.20 and 579,928.31

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Solution

The fourth proportional to 1,478,395.74, 2,216,640.20 and 579,928.31 is: 869,518.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,395.74 : 2,216,640.20 = 579,928.31 : x
  2. Step 2: Convert to fraction form
    1,478,395.74/2,216,640.20 = 579,928.31/x
  3. Step 3: Cross multiply
    1,478,395.74x = 2,216,640.20 × 579,928.31
  4. Step 4: Simplify right side
    1,478,395.74x = 1,285,492,391,081.22
  5. Step 5: Solve for x
    x = 1,285,492,391,081.22/1,478,395.74
  6. Step 6: Final answer
    x = 869,518.46

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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.