Home / 1,325,409.60-1,988,114.40-919,502.40

Finding the Fourth Proportional to 1,325,409.60, 1,988,114.40 and 919,502.40

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Solution

The fourth proportional to 1,325,409.60, 1,988,114.40 and 919,502.40 is: 1,379,253.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,409.60 : 1,988,114.40 = 919,502.40 : x
  2. Step 2: Convert to fraction form
    1,325,409.60/1,988,114.40 = 919,502.40/x
  3. Step 3: Cross multiply
    1,325,409.60x = 1,988,114.40 × 919,502.40
  4. Step 4: Simplify right side
    1,325,409.60x = 1,828,075,962,274.56
  5. Step 5: Solve for x
    x = 1,828,075,962,274.56/1,325,409.60
  6. Step 6: Final answer
    x = 1,379,253.60

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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.