Home / 789,827.40-1,185,615.90-490,645.80

Finding the Fourth Proportional to 789,827.40, 1,185,615.90 and 490,645.80

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Solution

The fourth proportional to 789,827.40, 1,185,615.90 and 490,645.80 is: 736,512.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,827.40 : 1,185,615.90 = 490,645.80 : x
  2. Step 2: Convert to fraction form
    789,827.40/1,185,615.90 = 490,645.80/x
  3. Step 3: Cross multiply
    789,827.40x = 1,185,615.90 × 490,645.80
  4. Step 4: Simplify right side
    789,827.40x = 581,717,461,748.22
  5. Step 5: Solve for x
    x = 581,717,461,748.22/789,827.40
  6. Step 6: Final answer
    x = 736,512.13

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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.