Home / 1,105,889.18-1,657,845.93-431,813.66

Finding the Fourth Proportional to 1,105,889.18, 1,657,845.93 and 431,813.66

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Solution

The fourth proportional to 1,105,889.18, 1,657,845.93 and 431,813.66 is: 647,334.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,889.18 : 1,657,845.93 = 431,813.66 : x
  2. Step 2: Convert to fraction form
    1,105,889.18/1,657,845.93 = 431,813.66/x
  3. Step 3: Cross multiply
    1,105,889.18x = 1,657,845.93 × 431,813.66
  4. Step 4: Simplify right side
    1,105,889.18x = 715,880,518,749.40
  5. Step 5: Solve for x
    x = 715,880,518,749.40/1,105,889.18
  6. Step 6: Final answer
    x = 647,334.77

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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.