Home / 782,573.49-1,173,638.79-355,870.65

Finding the Fourth Proportional to 782,573.49, 1,173,638.79 and 355,870.65

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Solution

The fourth proportional to 782,573.49, 1,173,638.79 and 355,870.65 is: 533,705.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,573.49 : 1,173,638.79 = 355,870.65 : x
  2. Step 2: Convert to fraction form
    782,573.49/1,173,638.79 = 355,870.65/x
  3. Step 3: Cross multiply
    782,573.49x = 1,173,638.79 × 355,870.65
  4. Step 4: Simplify right side
    782,573.49x = 417,663,599,062.51
  5. Step 5: Solve for x
    x = 417,663,599,062.51/782,573.49
  6. Step 6: Final answer
    x = 533,705.27

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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.