Home / 943,485.70-1,413,919.23-429,895.69

Finding the Fourth Proportional to 943,485.70, 1,413,919.23 and 429,895.69

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Solution

The fourth proportional to 943,485.70, 1,413,919.23 and 429,895.69 is: 644,246.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,485.70 : 1,413,919.23 = 429,895.69 : x
  2. Step 2: Convert to fraction form
    943,485.70/1,413,919.23 = 429,895.69/x
  3. Step 3: Cross multiply
    943,485.70x = 1,413,919.23 × 429,895.69
  4. Step 4: Simplify right side
    943,485.70x = 607,837,782,985.12
  5. Step 5: Solve for x
    x = 607,837,782,985.12/943,485.70
  6. Step 6: Final answer
    x = 644,246.95

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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.