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Finding the Fourth Proportional to 359,427.40, 539,141.10 and 324,435.40

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Solution

The fourth proportional to 359,427.40, 539,141.10 and 324,435.40 is: 486,653.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,427.40 : 539,141.10 = 324,435.40 : x
  2. Step 2: Convert to fraction form
    359,427.40/539,141.10 = 324,435.40/x
  3. Step 3: Cross multiply
    359,427.40x = 539,141.10 × 324,435.40
  4. Step 4: Simplify right side
    359,427.40x = 174,916,458,434.94
  5. Step 5: Solve for x
    x = 174,916,458,434.94/359,427.40
  6. Step 6: Final answer
    x = 486,653.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.