Home / 630,478.24-869,933.20-401,126.56

Finding the Fourth Proportional to 630,478.24, 869,933.20 and 401,126.56

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Solution

The fourth proportional to 630,478.24, 869,933.20 and 401,126.56 is: 553,474.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,478.24 : 869,933.20 = 401,126.56 : x
  2. Step 2: Convert to fraction form
    630,478.24/869,933.20 = 401,126.56/x
  3. Step 3: Cross multiply
    630,478.24x = 869,933.20 × 401,126.56
  4. Step 4: Simplify right side
    630,478.24x = 348,953,311,945.79
  5. Step 5: Solve for x
    x = 348,953,311,945.79/630,478.24
  6. Step 6: Final answer
    x = 553,474.00

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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.