Home / 1,139,745.40-1,708,235.70-507,988.60

Finding the Fourth Proportional to 1,139,745.40, 1,708,235.70 and 507,988.60

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Solution

The fourth proportional to 1,139,745.40, 1,708,235.70 and 507,988.60 is: 761,366.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,745.40 : 1,708,235.70 = 507,988.60 : x
  2. Step 2: Convert to fraction form
    1,139,745.40/1,708,235.70 = 507,988.60/x
  3. Step 3: Cross multiply
    1,139,745.40x = 1,708,235.70 × 507,988.60
  4. Step 4: Simplify right side
    1,139,745.40x = 867,764,261,713.02
  5. Step 5: Solve for x
    x = 867,764,261,713.02/1,139,745.40
  6. Step 6: Final answer
    x = 761,366.76

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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.