Home / 1,409,607.60-2,114,411.40-812,410.80

Finding the Fourth Proportional to 1,409,607.60, 2,114,411.40 and 812,410.80

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Solution

The fourth proportional to 1,409,607.60, 2,114,411.40 and 812,410.80 is: 1,218,616.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,607.60 : 2,114,411.40 = 812,410.80 : x
  2. Step 2: Convert to fraction form
    1,409,607.60/2,114,411.40 = 812,410.80/x
  3. Step 3: Cross multiply
    1,409,607.60x = 2,114,411.40 × 812,410.80
  4. Step 4: Simplify right side
    1,409,607.60x = 1,717,770,657,003.12
  5. Step 5: Solve for x
    x = 1,717,770,657,003.12/1,409,607.60
  6. Step 6: Final answer
    x = 1,218,616.20

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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.