Home / 879,269.10-1,318,878.93-280,266.18

Finding the Fourth Proportional to 879,269.10, 1,318,878.93 and 280,266.18

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Solution

The fourth proportional to 879,269.10, 1,318,878.93 and 280,266.18 is: 420,391.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,269.10 : 1,318,878.93 = 280,266.18 : x
  2. Step 2: Convert to fraction form
    879,269.10/1,318,878.93 = 280,266.18/x
  3. Step 3: Cross multiply
    879,269.10x = 1,318,878.93 × 280,266.18
  4. Step 4: Simplify right side
    879,269.10x = 369,637,159,593.59
  5. Step 5: Solve for x
    x = 369,637,159,593.59/879,269.10
  6. Step 6: Final answer
    x = 420,391.39

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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.