Home / 715,569.06-987,074.12-446,830.50

Finding the Fourth Proportional to 715,569.06, 987,074.12 and 446,830.50

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Solution

The fourth proportional to 715,569.06, 987,074.12 and 446,830.50 is: 616,369.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,569.06 : 987,074.12 = 446,830.50 : x
  2. Step 2: Convert to fraction form
    715,569.06/987,074.12 = 446,830.50/x
  3. Step 3: Cross multiply
    715,569.06x = 987,074.12 × 446,830.50
  4. Step 4: Simplify right side
    715,569.06x = 441,054,820,342.51
  5. Step 5: Solve for x
    x = 441,054,820,342.51/715,569.06
  6. Step 6: Final answer
    x = 616,369.33

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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.