Home / 630,300.84-869,827.32-343,831.44

Finding the Fourth Proportional to 630,300.84, 869,827.32 and 343,831.44

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Solution

The fourth proportional to 630,300.84, 869,827.32 and 343,831.44 is: 474,494.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,300.84 : 869,827.32 = 343,831.44 : x
  2. Step 2: Convert to fraction form
    630,300.84/869,827.32 = 343,831.44/x
  3. Step 3: Cross multiply
    630,300.84x = 869,827.32 × 343,831.44
  4. Step 4: Simplify right side
    630,300.84x = 299,073,979,986.94
  5. Step 5: Solve for x
    x = 299,073,979,986.94/630,300.84
  6. Step 6: Final answer
    x = 474,494.02

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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.