Home / 839,079.60-1,157,931.96-457,109.16

Finding the Fourth Proportional to 839,079.60, 1,157,931.96 and 457,109.16

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Solution

The fourth proportional to 839,079.60, 1,157,931.96 and 457,109.16 is: 630,811.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,079.60 : 1,157,931.96 = 457,109.16 : x
  2. Step 2: Convert to fraction form
    839,079.60/1,157,931.96 = 457,109.16/x
  3. Step 3: Cross multiply
    839,079.60x = 1,157,931.96 × 457,109.16
  4. Step 4: Simplify right side
    839,079.60x = 529,301,305,572.75
  5. Step 5: Solve for x
    x = 529,301,305,572.75/839,079.60
  6. Step 6: Final answer
    x = 630,811.79

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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.