Home / 630,046.83-869,433.06-358,078.80

Finding the Fourth Proportional to 630,046.83, 869,433.06 and 358,078.80

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Solution

The fourth proportional to 630,046.83, 869,433.06 and 358,078.80 is: 494,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,046.83 : 869,433.06 = 358,078.80 : x
  2. Step 2: Convert to fraction form
    630,046.83/869,433.06 = 358,078.80/x
  3. Step 3: Cross multiply
    630,046.83x = 869,433.06 × 358,078.80
  4. Step 4: Simplify right side
    630,046.83x = 311,325,546,805.13
  5. Step 5: Solve for x
    x = 311,325,546,805.13/630,046.83
  6. Step 6: Final answer
    x = 494,130.80

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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.