Home / 1,155,638.80-1,594,772.40-646,340.80

Finding the Fourth Proportional to 1,155,638.80, 1,594,772.40 and 646,340.80

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Solution

The fourth proportional to 1,155,638.80, 1,594,772.40 and 646,340.80 is: 891,945.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,638.80 : 1,594,772.40 = 646,340.80 : x
  2. Step 2: Convert to fraction form
    1,155,638.80/1,594,772.40 = 646,340.80/x
  3. Step 3: Cross multiply
    1,155,638.80x = 1,594,772.40 × 646,340.80
  4. Step 4: Simplify right side
    1,155,638.80x = 1,030,766,468,833.92
  5. Step 5: Solve for x
    x = 1,030,766,468,833.92/1,155,638.80
  6. Step 6: Final answer
    x = 891,945.19

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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.