Home / 853,476.72-1,177,795.44-490,970.40

Finding the Fourth Proportional to 853,476.72, 1,177,795.44 and 490,970.40

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Solution

The fourth proportional to 853,476.72, 1,177,795.44 and 490,970.40 is: 677,537.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,476.72 : 1,177,795.44 = 490,970.40 : x
  2. Step 2: Convert to fraction form
    853,476.72/1,177,795.44 = 490,970.40/x
  3. Step 3: Cross multiply
    853,476.72x = 1,177,795.44 × 490,970.40
  4. Step 4: Simplify right side
    853,476.72x = 578,262,698,294.98
  5. Step 5: Solve for x
    x = 578,262,698,294.98/853,476.72
  6. Step 6: Final answer
    x = 677,537.75

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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.