Home / 1,101,903.57-1,520,638.20-618,459.03

Finding the Fourth Proportional to 1,101,903.57, 1,520,638.20 and 618,459.03

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Solution

The fourth proportional to 1,101,903.57, 1,520,638.20 and 618,459.03 is: 853,479.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,903.57 : 1,520,638.20 = 618,459.03 : x
  2. Step 2: Convert to fraction form
    1,101,903.57/1,520,638.20 = 618,459.03/x
  3. Step 3: Cross multiply
    1,101,903.57x = 1,520,638.20 × 618,459.03
  4. Step 4: Simplify right side
    1,101,903.57x = 940,452,426,152.95
  5. Step 5: Solve for x
    x = 940,452,426,152.95/1,101,903.57
  6. Step 6: Final answer
    x = 853,479.79

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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.