Home / 1,634,109.78-2,255,071.44-918,717.78

Finding the Fourth Proportional to 1,634,109.78, 2,255,071.44 and 918,717.78

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Solution

The fourth proportional to 1,634,109.78, 2,255,071.44 and 918,717.78 is: 1,267,830.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634,109.78 : 2,255,071.44 = 918,717.78 : x
  2. Step 2: Convert to fraction form
    1,634,109.78/2,255,071.44 = 918,717.78/x
  3. Step 3: Cross multiply
    1,634,109.78x = 2,255,071.44 × 918,717.78
  4. Step 4: Simplify right side
    1,634,109.78x = 2,071,774,227,098.20
  5. Step 5: Solve for x
    x = 2,071,774,227,098.20/1,634,109.78
  6. Step 6: Final answer
    x = 1,267,830.50

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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.