Home / 389,629.30-583,459.80-310,897.30

Finding the Fourth Proportional to 389,629.30, 583,459.80 and 310,897.30

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Solution

The fourth proportional to 389,629.30, 583,459.80 and 310,897.30 is: 465,560.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,629.30 : 583,459.80 = 310,897.30 : x
  2. Step 2: Convert to fraction form
    389,629.30/583,459.80 = 310,897.30/x
  3. Step 3: Cross multiply
    389,629.30x = 583,459.80 × 310,897.30
  4. Step 4: Simplify right side
    389,629.30x = 181,396,076,478.54
  5. Step 5: Solve for x
    x = 181,396,076,478.54/389,629.30
  6. Step 6: Final answer
    x = 465,560.67

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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.