Home / 478,935.78-660,930.19-264,079.23

Finding the Fourth Proportional to 478,935.78, 660,930.19 and 264,079.23

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Solution

The fourth proportional to 478,935.78, 660,930.19 and 264,079.23 is: 364,428.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,935.78 : 660,930.19 = 264,079.23 : x
  2. Step 2: Convert to fraction form
    478,935.78/660,930.19 = 264,079.23/x
  3. Step 3: Cross multiply
    478,935.78x = 660,930.19 × 264,079.23
  4. Step 4: Simplify right side
    478,935.78x = 174,537,935,658.95
  5. Step 5: Solve for x
    x = 174,537,935,658.95/478,935.78
  6. Step 6: Final answer
    x = 364,428.68

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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.