Home / 3,385,878.25-5,078,718.93-989,779.18

Finding the Fourth Proportional to 3,385,878.25, 5,078,718.93 and 989,779.18

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Solution

The fourth proportional to 3,385,878.25, 5,078,718.93 and 989,779.18 is: 1,484,639.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385,878.25 : 5,078,718.93 = 989,779.18 : x
  2. Step 2: Convert to fraction form
    3,385,878.25/5,078,718.93 = 989,779.18/x
  3. Step 3: Cross multiply
    3,385,878.25x = 5,078,718.93 × 989,779.18
  4. Step 4: Simplify right side
    3,385,878.25x = 5,026,810,232,592.28
  5. Step 5: Solve for x
    x = 5,026,810,232,592.28/3,385,878.25
  6. Step 6: Final answer
    x = 1,484,639.99

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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.