Home / 1,296,430.10-1,788,859.58-723,468.90

Finding the Fourth Proportional to 1,296,430.10, 1,788,859.58 and 723,468.90

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Solution

The fourth proportional to 1,296,430.10, 1,788,859.58 and 723,468.90 is: 998,267.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,430.10 : 1,788,859.58 = 723,468.90 : x
  2. Step 2: Convert to fraction form
    1,296,430.10/1,788,859.58 = 723,468.90/x
  3. Step 3: Cross multiply
    1,296,430.10x = 1,788,859.58 × 723,468.90
  4. Step 4: Simplify right side
    1,296,430.10x = 1,294,184,268,979.72
  5. Step 5: Solve for x
    x = 1,294,184,268,979.72/1,296,430.10
  6. Step 6: Final answer
    x = 998,267.68

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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.