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Finding the Fourth Proportional to 1,315,617.02, 1,815,532.32 and 734,848.41

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Solution

The fourth proportional to 1,315,617.02, 1,815,532.32 and 734,848.41 is: 1,014,080.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,617.02 : 1,815,532.32 = 734,848.41 : x
  2. Step 2: Convert to fraction form
    1,315,617.02/1,815,532.32 = 734,848.41/x
  3. Step 3: Cross multiply
    1,315,617.02x = 1,815,532.32 × 734,848.41
  4. Step 4: Simplify right side
    1,315,617.02x = 1,334,141,025,903.71
  5. Step 5: Solve for x
    x = 1,334,141,025,903.71/1,315,617.02
  6. Step 6: Final answer
    x = 1,014,080.09

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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.