Home / 1,666,621.20-2,499,348.60-867,637.20

Finding the Fourth Proportional to 1,666,621.20, 2,499,348.60 and 867,637.20

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Solution

The fourth proportional to 1,666,621.20, 2,499,348.60 and 867,637.20 is: 1,301,152.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,666,621.20 : 2,499,348.60 = 867,637.20 : x
  2. Step 2: Convert to fraction form
    1,666,621.20/2,499,348.60 = 867,637.20/x
  3. Step 3: Cross multiply
    1,666,621.20x = 2,499,348.60 × 867,637.20
  4. Step 4: Simplify right side
    1,666,621.20x = 2,168,527,821,127.92
  5. Step 5: Solve for x
    x = 2,168,527,821,127.92/1,666,621.20
  6. Step 6: Final answer
    x = 1,301,152.19

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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.