Home / 1,019,801.84-1,529,877.03-420,435.35

Finding the Fourth Proportional to 1,019,801.84, 1,529,877.03 and 420,435.35

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Solution

The fourth proportional to 1,019,801.84, 1,529,877.03 and 420,435.35 is: 630,724.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,801.84 : 1,529,877.03 = 420,435.35 : x
  2. Step 2: Convert to fraction form
    1,019,801.84/1,529,877.03 = 420,435.35/x
  3. Step 3: Cross multiply
    1,019,801.84x = 1,529,877.03 × 420,435.35
  4. Step 4: Simplify right side
    1,019,801.84x = 643,214,384,565.01
  5. Step 5: Solve for x
    x = 643,214,384,565.01/1,019,801.84
  6. Step 6: Final answer
    x = 630,724.87

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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.