Home / 1,241,999.36-1,710,028.80-1,128,483.20

Finding the Fourth Proportional to 1,241,999.36, 1,710,028.80 and 1,128,483.20

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Solution

The fourth proportional to 1,241,999.36, 1,710,028.80 and 1,128,483.20 is: 1,553,735.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,999.36 : 1,710,028.80 = 1,128,483.20 : x
  2. Step 2: Convert to fraction form
    1,241,999.36/1,710,028.80 = 1,128,483.20/x
  3. Step 3: Cross multiply
    1,241,999.36x = 1,710,028.80 × 1,128,483.20
  4. Step 4: Simplify right side
    1,241,999.36x = 1,929,738,772,316.16
  5. Step 5: Solve for x
    x = 1,929,738,772,316.16/1,241,999.36
  6. Step 6: Final answer
    x = 1,553,735.72

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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.