Home / 778,295.32-1,167,893.10-328,987.08

Finding the Fourth Proportional to 778,295.32, 1,167,893.10 and 328,987.08

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Solution

The fourth proportional to 778,295.32, 1,167,893.10 and 328,987.08 is: 493,670.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,295.32 : 1,167,893.10 = 328,987.08 : x
  2. Step 2: Convert to fraction form
    778,295.32/1,167,893.10 = 328,987.08/x
  3. Step 3: Cross multiply
    778,295.32x = 1,167,893.10 × 328,987.08
  4. Step 4: Simplify right side
    778,295.32x = 384,221,740,721.15
  5. Step 5: Solve for x
    x = 384,221,740,721.15/778,295.32
  6. Step 6: Final answer
    x = 493,670.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.