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Finding the Fourth Proportional to 682,694.98, 942,110.40 and 392,303.07

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Solution

The fourth proportional to 682,694.98, 942,110.40 and 392,303.07 is: 541,373.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,694.98 : 942,110.40 = 392,303.07 : x
  2. Step 2: Convert to fraction form
    682,694.98/942,110.40 = 392,303.07/x
  3. Step 3: Cross multiply
    682,694.98x = 942,110.40 × 392,303.07
  4. Step 4: Simplify right side
    682,694.98x = 369,592,800,727.79
  5. Step 5: Solve for x
    x = 369,592,800,727.79/682,694.98
  6. Step 6: Final answer
    x = 541,373.25

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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.