Home / 712,301.04-982,935-389,946.96

Finding the Fourth Proportional to 712,301.04, 982,935 and 389,946.96

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Solution

The fourth proportional to 712,301.04, 982,935 and 389,946.96 is: 538,104.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,301.04 : 982,935 = 389,946.96 : x
  2. Step 2: Convert to fraction form
    712,301.04/982,935 = 389,946.96/x
  3. Step 3: Cross multiply
    712,301.04x = 982,935 × 389,946.96
  4. Step 4: Simplify right side
    712,301.04x = 383,292,515,127.60
  5. Step 5: Solve for x
    x = 383,292,515,127.60/712,301.04
  6. Step 6: Final answer
    x = 538,104.67

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1.5x scale

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.