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Finding the Fourth Proportional to 660,426.52, 911,389.14 and 373,947.06

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Solution

The fourth proportional to 660,426.52, 911,389.14 and 373,947.06 is: 516,047.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,426.52 : 911,389.14 = 373,947.06 : x
  2. Step 2: Convert to fraction form
    660,426.52/911,389.14 = 373,947.06/x
  3. Step 3: Cross multiply
    660,426.52x = 911,389.14 × 373,947.06
  4. Step 4: Simplify right side
    660,426.52x = 340,811,289,418.93
  5. Step 5: Solve for x
    x = 340,811,289,418.93/660,426.52
  6. Step 6: Final answer
    x = 516,047.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.