Home / 1,445,539.28-2,168,112.09-380,492.15

Finding the Fourth Proportional to 1,445,539.28, 2,168,112.09 and 380,492.15

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Solution

The fourth proportional to 1,445,539.28, 2,168,112.09 and 380,492.15 is: 570,686.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445,539.28 : 2,168,112.09 = 380,492.15 : x
  2. Step 2: Convert to fraction form
    1,445,539.28/2,168,112.09 = 380,492.15/x
  3. Step 3: Cross multiply
    1,445,539.28x = 2,168,112.09 × 380,492.15
  4. Step 4: Simplify right side
    1,445,539.28x = 824,949,635,985.37
  5. Step 5: Solve for x
    x = 824,949,635,985.37/1,445,539.28
  6. Step 6: Final answer
    x = 570,686.42

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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.