Home / 1,015,216.81-1,400,999.21-562,507.81

Finding the Fourth Proportional to 1,015,216.81, 1,400,999.21 and 562,507.81

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Solution

The fourth proportional to 1,015,216.81, 1,400,999.21 and 562,507.81 is: 776,260.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,216.81 : 1,400,999.21 = 562,507.81 : x
  2. Step 2: Convert to fraction form
    1,015,216.81/1,400,999.21 = 562,507.81/x
  3. Step 3: Cross multiply
    1,015,216.81x = 1,400,999.21 × 562,507.81
  4. Step 4: Simplify right side
    1,015,216.81x = 788,072,997,428.83
  5. Step 5: Solve for x
    x = 788,072,997,428.83/1,015,216.81
  6. Step 6: Final answer
    x = 776,260.78

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1.5x scale

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.