Home / 1,216,795.40-1,823,905.99-458,308.69

Finding the Fourth Proportional to 1,216,795.40, 1,823,905.99 and 458,308.69

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Solution

The fourth proportional to 1,216,795.40, 1,823,905.99 and 458,308.69 is: 686,978.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,795.40 : 1,823,905.99 = 458,308.69 : x
  2. Step 2: Convert to fraction form
    1,216,795.40/1,823,905.99 = 458,308.69/x
  3. Step 3: Cross multiply
    1,216,795.40x = 1,823,905.99 × 458,308.69
  4. Step 4: Simplify right side
    1,216,795.40x = 835,911,960,973.17
  5. Step 5: Solve for x
    x = 835,911,960,973.17/1,216,795.40
  6. Step 6: Final answer
    x = 686,978.24

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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.