Home / 630,015.88-869,402.76-343,541.56

Finding the Fourth Proportional to 630,015.88, 869,402.76 and 343,541.56

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Solution

The fourth proportional to 630,015.88, 869,402.76 and 343,541.56 is: 474,076.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,015.88 : 869,402.76 = 343,541.56 : x
  2. Step 2: Convert to fraction form
    630,015.88/869,402.76 = 343,541.56/x
  3. Step 3: Cross multiply
    630,015.88x = 869,402.76 × 343,541.56
  4. Step 4: Simplify right side
    630,015.88x = 298,675,980,438.71
  5. Step 5: Solve for x
    x = 298,675,980,438.71/630,015.88
  6. Step 6: Final answer
    x = 474,076.91

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1.5x scale

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.