Home / 1,938,178.48-2,907,038.76-518,344.60

Finding the Fourth Proportional to 1,938,178.48, 2,907,038.76 and 518,344.60

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Solution

The fourth proportional to 1,938,178.48, 2,907,038.76 and 518,344.60 is: 777,455.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,178.48 : 2,907,038.76 = 518,344.60 : x
  2. Step 2: Convert to fraction form
    1,938,178.48/2,907,038.76 = 518,344.60/x
  3. Step 3: Cross multiply
    1,938,178.48x = 2,907,038.76 × 518,344.60
  4. Step 4: Simplify right side
    1,938,178.48x = 1,506,847,843,236.70
  5. Step 5: Solve for x
    x = 1,506,847,843,236.70/1,938,178.48
  6. Step 6: Final answer
    x = 777,455.67

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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.