Home / 879,309.40-1,319,741.70-753,338.20

Finding the Fourth Proportional to 879,309.40, 1,319,741.70 and 753,338.20

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Solution

The fourth proportional to 879,309.40, 1,319,741.70 and 753,338.20 is: 1,130,673.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,309.40 : 1,319,741.70 = 753,338.20 : x
  2. Step 2: Convert to fraction form
    879,309.40/1,319,741.70 = 753,338.20/x
  3. Step 3: Cross multiply
    879,309.40x = 1,319,741.70 × 753,338.20
  4. Step 4: Simplify right side
    879,309.40x = 994,211,836,742.94
  5. Step 5: Solve for x
    x = 994,211,836,742.94/879,309.40
  6. Step 6: Final answer
    x = 1,130,673.50

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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.