Home / 2,658,176.40-3,986,875.80-764,720.40

Finding the Fourth Proportional to 2,658,176.40, 3,986,875.80 and 764,720.40

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Solution

The fourth proportional to 2,658,176.40, 3,986,875.80 and 764,720.40 is: 1,146,968.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658,176.40 : 3,986,875.80 = 764,720.40 : x
  2. Step 2: Convert to fraction form
    2,658,176.40/3,986,875.80 = 764,720.40/x
  3. Step 3: Cross multiply
    2,658,176.40x = 3,986,875.80 × 764,720.40
  4. Step 4: Simplify right side
    2,658,176.40x = 3,048,845,256,526.32
  5. Step 5: Solve for x
    x = 3,048,845,256,526.32/2,658,176.40
  6. Step 6: Final answer
    x = 1,146,968.75

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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.