Home / 871,716.40-1,307,574.60-310,548.40

Finding the Fourth Proportional to 871,716.40, 1,307,574.60 and 310,548.40

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Solution

The fourth proportional to 871,716.40, 1,307,574.60 and 310,548.40 is: 465,822.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,716.40 : 1,307,574.60 = 310,548.40 : x
  2. Step 2: Convert to fraction form
    871,716.40/1,307,574.60 = 310,548.40/x
  3. Step 3: Cross multiply
    871,716.40x = 1,307,574.60 × 310,548.40
  4. Step 4: Simplify right side
    871,716.40x = 406,065,199,910.64
  5. Step 5: Solve for x
    x = 406,065,199,910.64/871,716.40
  6. Step 6: Final answer
    x = 465,822.60

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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.