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Finding the Fourth Proportional to 571,507.36, 786,880.56 and 435,103.36

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Solution

The fourth proportional to 571,507.36, 786,880.56 and 435,103.36 is: 599,072.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,507.36 : 786,880.56 = 435,103.36 : x
  2. Step 2: Convert to fraction form
    571,507.36/786,880.56 = 435,103.36/x
  3. Step 3: Cross multiply
    571,507.36x = 786,880.56 × 435,103.36
  4. Step 4: Simplify right side
    571,507.36x = 342,374,375,574.68
  5. Step 5: Solve for x
    x = 342,374,375,574.68/571,507.36
  6. Step 6: Final answer
    x = 599,072.56

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1.5x scale

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.