Home / 853,488.76-1,177,848.36-490,912.24

Finding the Fourth Proportional to 853,488.76, 1,177,848.36 and 490,912.24

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Solution

The fourth proportional to 853,488.76, 1,177,848.36 and 490,912.24 is: 677,478.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,488.76 : 1,177,848.36 = 490,912.24 : x
  2. Step 2: Convert to fraction form
    853,488.76/1,177,848.36 = 490,912.24/x
  3. Step 3: Cross multiply
    853,488.76x = 1,177,848.36 × 490,912.24
  4. Step 4: Simplify right side
    853,488.76x = 578,220,176,787.93
  5. Step 5: Solve for x
    x = 578,220,176,787.93/853,488.76
  6. Step 6: Final answer
    x = 677,478.37

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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.