Home / 1,038,349.53-1,557,787.36-318,727.71

Finding the Fourth Proportional to 1,038,349.53, 1,557,787.36 and 318,727.71

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Solution

The fourth proportional to 1,038,349.53, 1,557,787.36 and 318,727.71 is: 478,172.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,349.53 : 1,557,787.36 = 318,727.71 : x
  2. Step 2: Convert to fraction form
    1,038,349.53/1,557,787.36 = 318,727.71/x
  3. Step 3: Cross multiply
    1,038,349.53x = 1,557,787.36 × 318,727.71
  4. Step 4: Simplify right side
    1,038,349.53x = 496,509,997,919.75
  5. Step 5: Solve for x
    x = 496,509,997,919.75/1,038,349.53
  6. Step 6: Final answer
    x = 478,172.31

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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.