Home / 648,340.65-894,721.59-357,986.34

Finding the Fourth Proportional to 648,340.65, 894,721.59 and 357,986.34

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Solution

The fourth proportional to 648,340.65, 894,721.59 and 357,986.34 is: 494,027.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,340.65 : 894,721.59 = 357,986.34 : x
  2. Step 2: Convert to fraction form
    648,340.65/894,721.59 = 357,986.34/x
  3. Step 3: Cross multiply
    648,340.65x = 894,721.59 × 357,986.34
  4. Step 4: Simplify right side
    648,340.65x = 320,298,107,323.08
  5. Step 5: Solve for x
    x = 320,298,107,323.08/648,340.65
  6. Step 6: Final answer
    x = 494,027.50

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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.