Home / 871,982.40-1,308,016.80-452,078.40

Finding the Fourth Proportional to 871,982.40, 1,308,016.80 and 452,078.40

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Solution

The fourth proportional to 871,982.40, 1,308,016.80 and 452,078.40 is: 678,140.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,982.40 : 1,308,016.80 = 452,078.40 : x
  2. Step 2: Convert to fraction form
    871,982.40/1,308,016.80 = 452,078.40/x
  3. Step 3: Cross multiply
    871,982.40x = 1,308,016.80 × 452,078.40
  4. Step 4: Simplify right side
    871,982.40x = 591,326,142,117.12
  5. Step 5: Solve for x
    x = 591,326,142,117.12/871,982.40
  6. Step 6: Final answer
    x = 678,140.00

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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.