Home / 1,220,552.64-1,683,764.28-1,059,181.20

Finding the Fourth Proportional to 1,220,552.64, 1,683,764.28 and 1,059,181.20

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Solution

The fourth proportional to 1,220,552.64, 1,683,764.28 and 1,059,181.20 is: 1,461,150.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,552.64 : 1,683,764.28 = 1,059,181.20 : x
  2. Step 2: Convert to fraction form
    1,220,552.64/1,683,764.28 = 1,059,181.20/x
  3. Step 3: Cross multiply
    1,220,552.64x = 1,683,764.28 × 1,059,181.20
  4. Step 4: Simplify right side
    1,220,552.64x = 1,783,411,470,607.54
  5. Step 5: Solve for x
    x = 1,783,411,470,607.54/1,220,552.64
  6. Step 6: Final answer
    x = 1,461,150.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.