Home / 1,122,740.43-1,549,396.62-639,307.52

Finding the Fourth Proportional to 1,122,740.43, 1,549,396.62 and 639,307.52

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Solution

The fourth proportional to 1,122,740.43, 1,549,396.62 and 639,307.52 is: 882,252.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,740.43 : 1,549,396.62 = 639,307.52 : x
  2. Step 2: Convert to fraction form
    1,122,740.43/1,549,396.62 = 639,307.52/x
  3. Step 3: Cross multiply
    1,122,740.43x = 1,549,396.62 × 639,307.52
  4. Step 4: Simplify right side
    1,122,740.43x = 990,540,908,691.84
  5. Step 5: Solve for x
    x = 990,540,908,691.84/1,122,740.43
  6. Step 6: Final answer
    x = 882,252.82

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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.