Home / 1,318,280.10-1,819,210.15-774,465.46

Finding the Fourth Proportional to 1,318,280.10, 1,819,210.15 and 774,465.46

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Solution

The fourth proportional to 1,318,280.10, 1,819,210.15 and 774,465.46 is: 1,068,752.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,280.10 : 1,819,210.15 = 774,465.46 : x
  2. Step 2: Convert to fraction form
    1,318,280.10/1,819,210.15 = 774,465.46/x
  3. Step 3: Cross multiply
    1,318,280.10x = 1,819,210.15 × 774,465.46
  4. Step 4: Simplify right side
    1,318,280.10x = 1,408,915,422,076.48
  5. Step 5: Solve for x
    x = 1,408,915,422,076.48/1,318,280.10
  6. Step 6: Final answer
    x = 1,068,752.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.