Home / 1,122,051.60-1,683,077.40-786,128.40

Finding the Fourth Proportional to 1,122,051.60, 1,683,077.40 and 786,128.40

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Solution

The fourth proportional to 1,122,051.60, 1,683,077.40 and 786,128.40 is: 1,179,192.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,051.60 : 1,683,077.40 = 786,128.40 : x
  2. Step 2: Convert to fraction form
    1,122,051.60/1,683,077.40 = 786,128.40/x
  3. Step 3: Cross multiply
    1,122,051.60x = 1,683,077.40 × 786,128.40
  4. Step 4: Simplify right side
    1,122,051.60x = 1,323,114,943,538.16
  5. Step 5: Solve for x
    x = 1,323,114,943,538.16/1,122,051.60
  6. Step 6: Final answer
    x = 1,179,192.60

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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.