Home / 839,458.31-1,158,418.67-457,476.89

Finding the Fourth Proportional to 839,458.31, 1,158,418.67 and 457,476.89

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Solution

The fourth proportional to 839,458.31, 1,158,418.67 and 457,476.89 is: 631,299.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,458.31 : 1,158,418.67 = 457,476.89 : x
  2. Step 2: Convert to fraction form
    839,458.31/1,158,418.67 = 457,476.89/x
  3. Step 3: Cross multiply
    839,458.31x = 1,158,418.67 × 457,476.89
  4. Step 4: Simplify right side
    839,458.31x = 529,949,762,390.06
  5. Step 5: Solve for x
    x = 529,949,762,390.06/839,458.31
  6. Step 6: Final answer
    x = 631,299.68

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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.