Home / 500,427.28-750,556.32-140,515.60

Finding the Fourth Proportional to 500,427.28, 750,556.32 and 140,515.60

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Solution

The fourth proportional to 500,427.28, 750,556.32 and 140,515.60 is: 210,749.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,427.28 : 750,556.32 = 140,515.60 : x
  2. Step 2: Convert to fraction form
    500,427.28/750,556.32 = 140,515.60/x
  3. Step 3: Cross multiply
    500,427.28x = 750,556.32 × 140,515.60
  4. Step 4: Simplify right side
    500,427.28x = 105,464,871,638.59
  5. Step 5: Solve for x
    x = 105,464,871,638.59/500,427.28
  6. Step 6: Final answer
    x = 210,749.65

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1.5x scale

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.