Home / 478,048.34-659,681.64-263,146.43

Finding the Fourth Proportional to 478,048.34, 659,681.64 and 263,146.43

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Solution

The fourth proportional to 478,048.34, 659,681.64 and 263,146.43 is: 363,128.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,048.34 : 659,681.64 = 263,146.43 : x
  2. Step 2: Convert to fraction form
    478,048.34/659,681.64 = 263,146.43/x
  3. Step 3: Cross multiply
    478,048.34x = 659,681.64 × 263,146.43
  4. Step 4: Simplify right side
    478,048.34x = 173,592,868,502.55
  5. Step 5: Solve for x
    x = 173,592,868,502.55/478,048.34
  6. Step 6: Final answer
    x = 363,128.27

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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.