Home / 1,465,355.40-2,198,421.90-518,627.40

Finding the Fourth Proportional to 1,465,355.40, 2,198,421.90 and 518,627.40

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Solution

The fourth proportional to 1,465,355.40, 2,198,421.90 and 518,627.40 is: 778,078.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465,355.40 : 2,198,421.90 = 518,627.40 : x
  2. Step 2: Convert to fraction form
    1,465,355.40/2,198,421.90 = 518,627.40/x
  3. Step 3: Cross multiply
    1,465,355.40x = 2,198,421.90 × 518,627.40
  4. Step 4: Simplify right side
    1,465,355.40x = 1,140,161,834,100.06
  5. Step 5: Solve for x
    x = 1,140,161,834,100.06/1,465,355.40
  6. Step 6: Final answer
    x = 778,078.71

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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.