Home / 1,220,828.60-1,831,242.90-557,276.60

Finding the Fourth Proportional to 1,220,828.60, 1,831,242.90 and 557,276.60

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Solution

The fourth proportional to 1,220,828.60, 1,831,242.90 and 557,276.60 is: 835,914.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,828.60 : 1,831,242.90 = 557,276.60 : x
  2. Step 2: Convert to fraction form
    1,220,828.60/1,831,242.90 = 557,276.60/x
  3. Step 3: Cross multiply
    1,220,828.60x = 1,831,242.90 × 557,276.60
  4. Step 4: Simplify right side
    1,220,828.60x = 1,020,508,817,086.14
  5. Step 5: Solve for x
    x = 1,020,508,817,086.14/1,220,828.60
  6. Step 6: Final answer
    x = 835,914.90

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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.