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Finding the Fourth Proportional to 660,107.36, 909,315.60 and 562,993.76

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Solution

The fourth proportional to 660,107.36, 909,315.60 and 562,993.76 is: 775,539.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,107.36 : 909,315.60 = 562,993.76 : x
  2. Step 2: Convert to fraction form
    660,107.36/909,315.60 = 562,993.76/x
  3. Step 3: Cross multiply
    660,107.36x = 909,315.60 × 562,993.76
  4. Step 4: Simplify right side
    660,107.36x = 511,939,008,670.66
  5. Step 5: Solve for x
    x = 511,939,008,670.66/660,107.36
  6. Step 6: Final answer
    x = 775,539.01

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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.