Home / 899,612.34-1,242,394.65-778,170.66

Finding the Fourth Proportional to 899,612.34, 1,242,394.65 and 778,170.66

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Solution

The fourth proportional to 899,612.34, 1,242,394.65 and 778,170.66 is: 1,074,679.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,612.34 : 1,242,394.65 = 778,170.66 : x
  2. Step 2: Convert to fraction form
    899,612.34/1,242,394.65 = 778,170.66/x
  3. Step 3: Cross multiply
    899,612.34x = 1,242,394.65 × 778,170.66
  4. Step 4: Simplify right side
    899,612.34x = 966,795,064,770.97
  5. Step 5: Solve for x
    x = 966,795,064,770.97/899,612.34
  6. Step 6: Final answer
    x = 1,074,679.64

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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.