Home / 1,319,365.32-1,979,043.12-477,720.24

Finding the Fourth Proportional to 1,319,365.32, 1,979,043.12 and 477,720.24

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Solution

The fourth proportional to 1,319,365.32, 1,979,043.12 and 477,720.24 is: 716,578.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,365.32 : 1,979,043.12 = 477,720.24 : x
  2. Step 2: Convert to fraction form
    1,319,365.32/1,979,043.12 = 477,720.24/x
  3. Step 3: Cross multiply
    1,319,365.32x = 1,979,043.12 × 477,720.24
  4. Step 4: Simplify right side
    1,319,365.32x = 945,428,954,256.75
  5. Step 5: Solve for x
    x = 945,428,954,256.75/1,319,365.32
  6. Step 6: Final answer
    x = 716,578.60

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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.