Home / 916,655.40-1,374,594.30-443,485.80

Finding the Fourth Proportional to 916,655.40, 1,374,594.30 and 443,485.80

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Solution

The fourth proportional to 916,655.40, 1,374,594.30 and 443,485.80 is: 665,040.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,655.40 : 1,374,594.30 = 443,485.80 : x
  2. Step 2: Convert to fraction form
    916,655.40/1,374,594.30 = 443,485.80/x
  3. Step 3: Cross multiply
    916,655.40x = 1,374,594.30 × 443,485.80
  4. Step 4: Simplify right side
    916,655.40x = 609,613,052,810.94
  5. Step 5: Solve for x
    x = 609,613,052,810.94/916,655.40
  6. Step 6: Final answer
    x = 665,040.60

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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.