Home / 1,347,124.40-2,020,686.60-842,255.45

Finding the Fourth Proportional to 1,347,124.40, 2,020,686.60 and 842,255.45

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Solution

The fourth proportional to 1,347,124.40, 2,020,686.60 and 842,255.45 is: 1,263,383.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,124.40 : 2,020,686.60 = 842,255.45 : x
  2. Step 2: Convert to fraction form
    1,347,124.40/2,020,686.60 = 842,255.45/x
  3. Step 3: Cross multiply
    1,347,124.40x = 2,020,686.60 × 842,255.45
  4. Step 4: Simplify right side
    1,347,124.40x = 1,701,934,301,591.97
  5. Step 5: Solve for x
    x = 1,701,934,301,591.97/1,347,124.40
  6. Step 6: Final answer
    x = 1,263,383.18

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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.