Home / 1,008,485.40-1,512,728.10-368,787.90

Finding the Fourth Proportional to 1,008,485.40, 1,512,728.10 and 368,787.90

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Solution

The fourth proportional to 1,008,485.40, 1,512,728.10 and 368,787.90 is: 553,181.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,485.40 : 1,512,728.10 = 368,787.90 : x
  2. Step 2: Convert to fraction form
    1,008,485.40/1,512,728.10 = 368,787.90/x
  3. Step 3: Cross multiply
    1,008,485.40x = 1,512,728.10 × 368,787.90
  4. Step 4: Simplify right side
    1,008,485.40x = 557,875,819,269.99
  5. Step 5: Solve for x
    x = 557,875,819,269.99/1,008,485.40
  6. Step 6: Final answer
    x = 553,181.85

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1.5x scale

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.