Home / 989,855.40-1,484,783.10-989,855.40

Finding the Fourth Proportional to 989,855.40, 1,484,783.10 and 989,855.40

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Solution

The fourth proportional to 989,855.40, 1,484,783.10 and 989,855.40 is: 1,484,783.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,855.40 : 1,484,783.10 = 989,855.40 : x
  2. Step 2: Convert to fraction form
    989,855.40/1,484,783.10 = 989,855.40/x
  3. Step 3: Cross multiply
    989,855.40x = 1,484,783.10 × 989,855.40
  4. Step 4: Simplify right side
    989,855.40x = 1,469,720,569,363.74
  5. Step 5: Solve for x
    x = 1,469,720,569,363.74/989,855.40
  6. Step 6: Final answer
    x = 1,484,783.10

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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.