Home / 1,328,464.20-1,992,437.10-429,688.20

Finding the Fourth Proportional to 1,328,464.20, 1,992,437.10 and 429,688.20

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Solution

The fourth proportional to 1,328,464.20, 1,992,437.10 and 429,688.20 is: 644,448.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,464.20 : 1,992,437.10 = 429,688.20 : x
  2. Step 2: Convert to fraction form
    1,328,464.20/1,992,437.10 = 429,688.20/x
  3. Step 3: Cross multiply
    1,328,464.20x = 1,992,437.10 × 429,688.20
  4. Step 4: Simplify right side
    1,328,464.20x = 856,126,711,112.22
  5. Step 5: Solve for x
    x = 856,126,711,112.22/1,328,464.20
  6. Step 6: Final answer
    x = 644,448.46

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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.