Home / 712,055.22-982,635.48-389,762.46

Finding the Fourth Proportional to 712,055.22, 982,635.48 and 389,762.46

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Solution

The fourth proportional to 712,055.22, 982,635.48 and 389,762.46 is: 537,871.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,055.22 : 982,635.48 = 389,762.46 : x
  2. Step 2: Convert to fraction form
    712,055.22/982,635.48 = 389,762.46/x
  3. Step 3: Cross multiply
    712,055.22x = 982,635.48 × 389,762.46
  4. Step 4: Simplify right side
    712,055.22x = 382,994,421,968.08
  5. Step 5: Solve for x
    x = 382,994,421,968.08/712,055.22
  6. Step 6: Final answer
    x = 537,871.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.