Home / 630,276.60-869,749.74-343,794.36

Finding the Fourth Proportional to 630,276.60, 869,749.74 and 343,794.36

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Solution

The fourth proportional to 630,276.60, 869,749.74 and 343,794.36 is: 474,418.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,276.60 : 869,749.74 = 343,794.36 : x
  2. Step 2: Convert to fraction form
    630,276.60/869,749.74 = 343,794.36/x
  3. Step 3: Cross multiply
    630,276.60x = 869,749.74 × 343,794.36
  4. Step 4: Simplify right side
    630,276.60x = 299,015,055,223.47
  5. Step 5: Solve for x
    x = 299,015,055,223.47/630,276.60
  6. Step 6: Final answer
    x = 474,418.78

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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.