Home / 1,470,515.20-2,205,772.80-405,721.60

Finding the Fourth Proportional to 1,470,515.20, 2,205,772.80 and 405,721.60

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Solution

The fourth proportional to 1,470,515.20, 2,205,772.80 and 405,721.60 is: 608,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,470,515.20 : 2,205,772.80 = 405,721.60 : x
  2. Step 2: Convert to fraction form
    1,470,515.20/2,205,772.80 = 405,721.60/x
  3. Step 3: Cross multiply
    1,470,515.20x = 2,205,772.80 × 405,721.60
  4. Step 4: Simplify right side
    1,470,515.20x = 894,929,669,652.48
  5. Step 5: Solve for x
    x = 894,929,669,652.48/1,470,515.20
  6. Step 6: Final answer
    x = 608,582.40

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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.