Home / 1,688,239.98-2,329,135.11-1,107,783.18

Finding the Fourth Proportional to 1,688,239.98, 2,329,135.11 and 1,107,783.18

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Solution

The fourth proportional to 1,688,239.98, 2,329,135.11 and 1,107,783.18 is: 1,528,323.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,239.98 : 2,329,135.11 = 1,107,783.18 : x
  2. Step 2: Convert to fraction form
    1,688,239.98/2,329,135.11 = 1,107,783.18/x
  3. Step 3: Cross multiply
    1,688,239.98x = 2,329,135.11 × 1,107,783.18
  4. Step 4: Simplify right side
    1,688,239.98x = 2,580,176,698,805.45
  5. Step 5: Solve for x
    x = 2,580,176,698,805.45/1,688,239.98
  6. Step 6: Final answer
    x = 1,528,323.42

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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.