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Finding the Fourth Proportional to 684,040.95, 943,978.41 and 373,947.28

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Solution

The fourth proportional to 684,040.95, 943,978.41 and 373,947.28 is: 516,048.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,040.95 : 943,978.41 = 373,947.28 : x
  2. Step 2: Convert to fraction form
    684,040.95/943,978.41 = 373,947.28/x
  3. Step 3: Cross multiply
    684,040.95x = 943,978.41 × 373,947.28
  4. Step 4: Simplify right side
    684,040.95x = 352,998,158,798.23
  5. Step 5: Solve for x
    x = 352,998,158,798.23/684,040.95
  6. Step 6: Final answer
    x = 516,048.28

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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.