Home / 1,698,421.21-2,342,927.88-1,009,603.12

Finding the Fourth Proportional to 1,698,421.21, 2,342,927.88 and 1,009,603.12

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Solution

The fourth proportional to 1,698,421.21, 2,342,927.88 and 1,009,603.12 is: 1,392,721.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698,421.21 : 2,342,927.88 = 1,009,603.12 : x
  2. Step 2: Convert to fraction form
    1,698,421.21/2,342,927.88 = 1,009,603.12/x
  3. Step 3: Cross multiply
    1,698,421.21x = 2,342,927.88 × 1,009,603.12
  4. Step 4: Simplify right side
    1,698,421.21x = 2,365,427,297,582.99
  5. Step 5: Solve for x
    x = 2,365,427,297,582.99/1,698,421.21
  6. Step 6: Final answer
    x = 1,392,721.24

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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.