Home / 1,019,975.40-1,529,963.10-420,737.40

Finding the Fourth Proportional to 1,019,975.40, 1,529,963.10 and 420,737.40

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Solution

The fourth proportional to 1,019,975.40, 1,529,963.10 and 420,737.40 is: 631,106.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,975.40 : 1,529,963.10 = 420,737.40 : x
  2. Step 2: Convert to fraction form
    1,019,975.40/1,529,963.10 = 420,737.40/x
  3. Step 3: Cross multiply
    1,019,975.40x = 1,529,963.10 × 420,737.40
  4. Step 4: Simplify right side
    1,019,975.40x = 643,712,696,789.94
  5. Step 5: Solve for x
    x = 643,712,696,789.94/1,019,975.40
  6. Step 6: Final answer
    x = 631,106.10

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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.