Home / 1,436,302.80-1,982,037.60-919,328.40

Finding the Fourth Proportional to 1,436,302.80, 1,982,037.60 and 919,328.40

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Solution

The fourth proportional to 1,436,302.80, 1,982,037.60 and 919,328.40 is: 1,268,634.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436,302.80 : 1,982,037.60 = 919,328.40 : x
  2. Step 2: Convert to fraction form
    1,436,302.80/1,982,037.60 = 919,328.40/x
  3. Step 3: Cross multiply
    1,436,302.80x = 1,982,037.60 × 919,328.40
  4. Step 4: Simplify right side
    1,436,302.80x = 1,822,143,455,547.84
  5. Step 5: Solve for x
    x = 1,822,143,455,547.84/1,436,302.80
  6. Step 6: Final answer
    x = 1,268,634.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.