Home / 1,436,742-2,155,113.81-439,470

Finding the Fourth Proportional to 1,436,742, 2,155,113.81 and 439,470

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Solution

The fourth proportional to 1,436,742, 2,155,113.81 and 439,470 is: 659,205.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436,742 : 2,155,113.81 = 439,470 : x
  2. Step 2: Convert to fraction form
    1,436,742/2,155,113.81 = 439,470/x
  3. Step 3: Cross multiply
    1,436,742x = 2,155,113.81 × 439,470
  4. Step 4: Simplify right side
    1,436,742x = 947,107,866,080.70
  5. Step 5: Solve for x
    x = 947,107,866,080.70/1,436,742
  6. Step 6: Final answer
    x = 659,205.25

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.