Home / 1,315,341.24-1,815,474.24-771,651.69

Finding the Fourth Proportional to 1,315,341.24, 1,815,474.24 and 771,651.69

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Solution

The fourth proportional to 1,315,341.24, 1,815,474.24 and 771,651.69 is: 1,065,057.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,341.24 : 1,815,474.24 = 771,651.69 : x
  2. Step 2: Convert to fraction form
    1,315,341.24/1,815,474.24 = 771,651.69/x
  3. Step 3: Cross multiply
    1,315,341.24x = 1,815,474.24 × 771,651.69
  4. Step 4: Simplify right side
    1,315,341.24x = 1,400,913,766,894.31
  5. Step 5: Solve for x
    x = 1,400,913,766,894.31/1,315,341.24
  6. Step 6: Final answer
    x = 1,065,057.28

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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.