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Finding the Fourth Proportional to 840,846.66, 1,160,394.03 and 478,323.06

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Solution

The fourth proportional to 840,846.66, 1,160,394.03 and 478,323.06 is: 660,100.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,846.66 : 1,160,394.03 = 478,323.06 : x
  2. Step 2: Convert to fraction form
    840,846.66/1,160,394.03 = 478,323.06/x
  3. Step 3: Cross multiply
    840,846.66x = 1,160,394.03 × 478,323.06
  4. Step 4: Simplify right side
    840,846.66x = 555,043,223,235.33
  5. Step 5: Solve for x
    x = 555,043,223,235.33/840,846.66
  6. Step 6: Final answer
    x = 660,100.41

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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.