Home / 630,398.43-869,945.63-358,466.33

Finding the Fourth Proportional to 630,398.43, 869,945.63 and 358,466.33

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Solution

The fourth proportional to 630,398.43, 869,945.63 and 358,466.33 is: 494,681.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,398.43 : 869,945.63 = 358,466.33 : x
  2. Step 2: Convert to fraction form
    630,398.43/869,945.63 = 358,466.33/x
  3. Step 3: Cross multiply
    630,398.43x = 869,945.63 × 358,466.33
  4. Step 4: Simplify right side
    630,398.43x = 311,846,217,668.17
  5. Step 5: Solve for x
    x = 311,846,217,668.17/630,398.43
  6. Step 6: Final answer
    x = 494,681.15

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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.