Home / 1,409,547.20-2,112,448.80-768,204.32

Finding the Fourth Proportional to 1,409,547.20, 2,112,448.80 and 768,204.32

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Solution

The fourth proportional to 1,409,547.20, 2,112,448.80 and 768,204.32 is: 1,151,286.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,547.20 : 2,112,448.80 = 768,204.32 : x
  2. Step 2: Convert to fraction form
    1,409,547.20/2,112,448.80 = 768,204.32/x
  3. Step 3: Cross multiply
    1,409,547.20x = 2,112,448.80 × 768,204.32
  4. Step 4: Simplify right side
    1,409,547.20x = 1,622,792,293,938.82
  5. Step 5: Solve for x
    x = 1,622,792,293,938.82/1,409,547.20
  6. Step 6: Final answer
    x = 1,151,286.24

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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.