Home / 1,018,986.40-1,528,090.80-308,778.40

Finding the Fourth Proportional to 1,018,986.40, 1,528,090.80 and 308,778.40

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Solution

The fourth proportional to 1,018,986.40, 1,528,090.80 and 308,778.40 is: 463,049.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,986.40 : 1,528,090.80 = 308,778.40 : x
  2. Step 2: Convert to fraction form
    1,018,986.40/1,528,090.80 = 308,778.40/x
  3. Step 3: Cross multiply
    1,018,986.40x = 1,528,090.80 × 308,778.40
  4. Step 4: Simplify right side
    1,018,986.40x = 471,841,432,278.72
  5. Step 5: Solve for x
    x = 471,841,432,278.72/1,018,986.40
  6. Step 6: Final answer
    x = 463,049.78

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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.