Home / 665,422.63-918,301.64-407,294.44

Finding the Fourth Proportional to 665,422.63, 918,301.64 and 407,294.44

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Solution

The fourth proportional to 665,422.63, 918,301.64 and 407,294.44 is: 562,077.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,422.63 : 918,301.64 = 407,294.44 : x
  2. Step 2: Convert to fraction form
    665,422.63/918,301.64 = 407,294.44/x
  3. Step 3: Cross multiply
    665,422.63x = 918,301.64 × 407,294.44
  4. Step 4: Simplify right side
    665,422.63x = 374,019,152,214.88
  5. Step 5: Solve for x
    x = 374,019,152,214.88/665,422.63
  6. Step 6: Final answer
    x = 562,077.60

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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.