Home / 879,206.40-1,318,809.60-777,729.60

Finding the Fourth Proportional to 879,206.40, 1,318,809.60 and 777,729.60

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Solution

The fourth proportional to 879,206.40, 1,318,809.60 and 777,729.60 is: 1,166,594.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,206.40 : 1,318,809.60 = 777,729.60 : x
  2. Step 2: Convert to fraction form
    879,206.40/1,318,809.60 = 777,729.60/x
  3. Step 3: Cross multiply
    879,206.40x = 1,318,809.60 × 777,729.60
  4. Step 4: Simplify right side
    879,206.40x = 1,025,677,262,684.16
  5. Step 5: Solve for x
    x = 1,025,677,262,684.16/879,206.40
  6. Step 6: Final answer
    x = 1,166,594.40

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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.