Home / 1,216,803.43-1,823,918.05-458,316.71

Finding the Fourth Proportional to 1,216,803.43, 1,823,918.05 and 458,316.71

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Solution

The fourth proportional to 1,216,803.43, 1,823,918.05 and 458,316.71 is: 686,990.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,803.43 : 1,823,918.05 = 458,316.71 : x
  2. Step 2: Convert to fraction form
    1,216,803.43/1,823,918.05 = 458,316.71/x
  3. Step 3: Cross multiply
    1,216,803.43x = 1,823,918.05 × 458,316.71
  4. Step 4: Simplify right side
    1,216,803.43x = 835,932,119,985.62
  5. Step 5: Solve for x
    x = 835,932,119,985.62/1,216,803.43
  6. Step 6: Final answer
    x = 686,990.27

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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.