Home / 2,818,477.90-4,227,696.60-688,542.40

Finding the Fourth Proportional to 2,818,477.90, 4,227,696.60 and 688,542.40

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Solution

The fourth proportional to 2,818,477.90, 4,227,696.60 and 688,542.40 is: 1,032,808.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818,477.90 : 4,227,696.60 = 688,542.40 : x
  2. Step 2: Convert to fraction form
    2,818,477.90/4,227,696.60 = 688,542.40/x
  3. Step 3: Cross multiply
    2,818,477.90x = 4,227,696.60 × 688,542.40
  4. Step 4: Simplify right side
    2,818,477.90x = 2,910,948,363,435.84
  5. Step 5: Solve for x
    x = 2,910,948,363,435.84/2,818,477.90
  6. Step 6: Final answer
    x = 1,032,808.65

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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.