Home / 385,546.60-531,681.06-300,632.68

Finding the Fourth Proportional to 385,546.60, 531,681.06 and 300,632.68

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Solution

The fourth proportional to 385,546.60, 531,681.06 and 300,632.68 is: 414,582.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,546.60 : 531,681.06 = 300,632.68 : x
  2. Step 2: Convert to fraction form
    385,546.60/531,681.06 = 300,632.68/x
  3. Step 3: Cross multiply
    385,546.60x = 531,681.06 × 300,632.68
  4. Step 4: Simplify right side
    385,546.60x = 159,840,701,973.04
  5. Step 5: Solve for x
    x = 159,840,701,973.04/385,546.60
  6. Step 6: Final answer
    x = 414,582.06

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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.