Home / 630,222.60-945,948.30-315,035.40

Finding the Fourth Proportional to 630,222.60, 945,948.30 and 315,035.40

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Solution

The fourth proportional to 630,222.60, 945,948.30 and 315,035.40 is: 472,860.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,222.60 : 945,948.30 = 315,035.40 : x
  2. Step 2: Convert to fraction form
    630,222.60/945,948.30 = 315,035.40/x
  3. Step 3: Cross multiply
    630,222.60x = 945,948.30 × 315,035.40
  4. Step 4: Simplify right side
    630,222.60x = 298,007,201,069.82
  5. Step 5: Solve for x
    x = 298,007,201,069.82/630,222.60
  6. Step 6: Final answer
    x = 472,860.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.