Home / 839,429.06-1,158,378.30-457,447.64

Finding the Fourth Proportional to 839,429.06, 1,158,378.30 and 457,447.64

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Solution

The fourth proportional to 839,429.06, 1,158,378.30 and 457,447.64 is: 631,259.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,429.06 : 1,158,378.30 = 457,447.64 : x
  2. Step 2: Convert to fraction form
    839,429.06/1,158,378.30 = 457,447.64/x
  3. Step 3: Cross multiply
    839,429.06x = 1,158,378.30 × 457,447.64
  4. Step 4: Simplify right side
    839,429.06x = 529,897,413,770.32
  5. Step 5: Solve for x
    x = 529,897,413,770.32/839,429.06
  6. Step 6: Final answer
    x = 631,259.32

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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.