Home / 1,220,961.60-1,831,442.40-557,409.60

Finding the Fourth Proportional to 1,220,961.60, 1,831,442.40 and 557,409.60

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Solution

The fourth proportional to 1,220,961.60, 1,831,442.40 and 557,409.60 is: 836,114.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,961.60 : 1,831,442.40 = 557,409.60 : x
  2. Step 2: Convert to fraction form
    1,220,961.60/1,831,442.40 = 557,409.60/x
  3. Step 3: Cross multiply
    1,220,961.60x = 1,831,442.40 × 557,409.60
  4. Step 4: Simplify right side
    1,220,961.60x = 1,020,863,575,607.04
  5. Step 5: Solve for x
    x = 1,020,863,575,607.04/1,220,961.60
  6. Step 6: Final answer
    x = 836,114.40

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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.