Home / 630,308.45-869,831.97-343,834.58

Finding the Fourth Proportional to 630,308.45, 869,831.97 and 343,834.58

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Solution

The fourth proportional to 630,308.45, 869,831.97 and 343,834.58 is: 474,495.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,308.45 : 869,831.97 = 343,834.58 : x
  2. Step 2: Convert to fraction form
    630,308.45/869,831.97 = 343,834.58/x
  3. Step 3: Cross multiply
    630,308.45x = 869,831.97 × 343,834.58
  4. Step 4: Simplify right side
    630,308.45x = 299,078,310,075.52
  5. Step 5: Solve for x
    x = 299,078,310,075.52/630,308.45
  6. Step 6: Final answer
    x = 474,495.16

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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.