Home / 648,506.24-894,233.28-421,731.20

Finding the Fourth Proportional to 648,506.24, 894,233.28 and 421,731.20

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Solution

The fourth proportional to 648,506.24, 894,233.28 and 421,731.20 is: 581,530.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,506.24 : 894,233.28 = 421,731.20 : x
  2. Step 2: Convert to fraction form
    648,506.24/894,233.28 = 421,731.20/x
  3. Step 3: Cross multiply
    648,506.24x = 894,233.28 × 421,731.20
  4. Step 4: Simplify right side
    648,506.24x = 377,126,074,254.34
  5. Step 5: Solve for x
    x = 377,126,074,254.34/648,506.24
  6. Step 6: Final answer
    x = 581,530.37

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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.