Home / 3,118,916.08-4,678,957.26-988,428.16

Finding the Fourth Proportional to 3,118,916.08, 4,678,957.26 and 988,428.16

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Solution

The fourth proportional to 3,118,916.08, 4,678,957.26 and 988,428.16 is: 1,482,827.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,916.08 : 4,678,957.26 = 988,428.16 : x
  2. Step 2: Convert to fraction form
    3,118,916.08/4,678,957.26 = 988,428.16/x
  3. Step 3: Cross multiply
    3,118,916.08x = 4,678,957.26 × 988,428.16
  4. Step 4: Simplify right side
    3,118,916.08x = 4,624,813,115,220.44
  5. Step 5: Solve for x
    x = 4,624,813,115,220.44/3,118,916.08
  6. Step 6: Final answer
    x = 1,482,827.05

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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.