Home / 1,620,911.51-2,433,012.46-811,875.62

Finding the Fourth Proportional to 1,620,911.51, 2,433,012.46 and 811,875.62

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Solution

The fourth proportional to 1,620,911.51, 2,433,012.46 and 811,875.62 is: 1,218,637.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,911.51 : 2,433,012.46 = 811,875.62 : x
  2. Step 2: Convert to fraction form
    1,620,911.51/2,433,012.46 = 811,875.62/x
  3. Step 3: Cross multiply
    1,620,911.51x = 2,433,012.46 × 811,875.62
  4. Step 4: Simplify right side
    1,620,911.51x = 1,975,303,510,327.73
  5. Step 5: Solve for x
    x = 1,975,303,510,327.73/1,620,911.51
  6. Step 6: Final answer
    x = 1,218,637.48

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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.