Home / 1,374,141.60-2,061,212.40-812,887.20

Finding the Fourth Proportional to 1,374,141.60, 2,061,212.40 and 812,887.20

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Solution

The fourth proportional to 1,374,141.60, 2,061,212.40 and 812,887.20 is: 1,219,330.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374,141.60 : 2,061,212.40 = 812,887.20 : x
  2. Step 2: Convert to fraction form
    1,374,141.60/2,061,212.40 = 812,887.20/x
  3. Step 3: Cross multiply
    1,374,141.60x = 2,061,212.40 × 812,887.20
  4. Step 4: Simplify right side
    1,374,141.60x = 1,675,533,176,441.28
  5. Step 5: Solve for x
    x = 1,675,533,176,441.28/1,374,141.60
  6. Step 6: Final answer
    x = 1,219,330.80

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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.