Home / 1,221,312.30-1,831,968.45-902,447.70

Finding the Fourth Proportional to 1,221,312.30, 1,831,968.45 and 902,447.70

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Solution

The fourth proportional to 1,221,312.30, 1,831,968.45 and 902,447.70 is: 1,353,671.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,312.30 : 1,831,968.45 = 902,447.70 : x
  2. Step 2: Convert to fraction form
    1,221,312.30/1,831,968.45 = 902,447.70/x
  3. Step 3: Cross multiply
    1,221,312.30x = 1,831,968.45 × 902,447.70
  4. Step 4: Simplify right side
    1,221,312.30x = 1,653,255,714,175.07
  5. Step 5: Solve for x
    x = 1,653,255,714,175.07/1,221,312.30
  6. Step 6: Final answer
    x = 1,353,671.55

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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.