Home / 439,740.63-658,876.23-423,359.19

Finding the Fourth Proportional to 439,740.63, 658,876.23 and 423,359.19

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Solution

The fourth proportional to 439,740.63, 658,876.23 and 423,359.19 is: 634,331.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,740.63 : 658,876.23 = 423,359.19 : x
  2. Step 2: Convert to fraction form
    439,740.63/658,876.23 = 423,359.19/x
  3. Step 3: Cross multiply
    439,740.63x = 658,876.23 × 423,359.19
  4. Step 4: Simplify right side
    439,740.63x = 278,941,307,043.05
  5. Step 5: Solve for x
    x = 278,941,307,043.05/439,740.63
  6. Step 6: Final answer
    x = 634,331.44

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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.