Home / 1,139,834-1,572,834.84-630,467.12

Finding the Fourth Proportional to 1,139,834, 1,572,834.84 and 630,467.12

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Solution

The fourth proportional to 1,139,834, 1,572,834.84 and 630,467.12 is: 869,969.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,834 : 1,572,834.84 = 630,467.12 : x
  2. Step 2: Convert to fraction form
    1,139,834/1,572,834.84 = 630,467.12/x
  3. Step 3: Cross multiply
    1,139,834x = 1,572,834.84 × 630,467.12
  4. Step 4: Simplify right side
    1,139,834x = 991,620,651,810.46
  5. Step 5: Solve for x
    x = 991,620,651,810.46/1,139,834
  6. Step 6: Final answer
    x = 869,969.36

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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.