Home / 761,412.24-1,050,748.89-421,880.49

Finding the Fourth Proportional to 761,412.24, 1,050,748.89 and 421,880.49

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Solution

The fourth proportional to 761,412.24, 1,050,748.89 and 421,880.49 is: 582,195.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,412.24 : 1,050,748.89 = 421,880.49 : x
  2. Step 2: Convert to fraction form
    761,412.24/1,050,748.89 = 421,880.49/x
  3. Step 3: Cross multiply
    761,412.24x = 1,050,748.89 × 421,880.49
  4. Step 4: Simplify right side
    761,412.24x = 443,290,456,580.16
  5. Step 5: Solve for x
    x = 443,290,456,580.16/761,412.24
  6. Step 6: Final answer
    x = 582,195.08

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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.