Home / 1,012,111.20-1,518,166.80-988,783.20

Finding the Fourth Proportional to 1,012,111.20, 1,518,166.80 and 988,783.20

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Solution

The fourth proportional to 1,012,111.20, 1,518,166.80 and 988,783.20 is: 1,483,174.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,111.20 : 1,518,166.80 = 988,783.20 : x
  2. Step 2: Convert to fraction form
    1,012,111.20/1,518,166.80 = 988,783.20/x
  3. Step 3: Cross multiply
    1,012,111.20x = 1,518,166.80 × 988,783.20
  4. Step 4: Simplify right side
    1,012,111.20x = 1,501,137,826,637.76
  5. Step 5: Solve for x
    x = 1,501,137,826,637.76/1,012,111.20
  6. Step 6: Final answer
    x = 1,483,174.80

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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.