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Finding the Fourth Proportional to 839,698.24, 1,158,725.68 and 472,230.32

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Solution

The fourth proportional to 839,698.24, 1,158,725.68 and 472,230.32 is: 651,645.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,698.24 : 1,158,725.68 = 472,230.32 : x
  2. Step 2: Convert to fraction form
    839,698.24/1,158,725.68 = 472,230.32/x
  3. Step 3: Cross multiply
    839,698.24x = 1,158,725.68 × 472,230.32
  4. Step 4: Simplify right side
    839,698.24x = 547,185,398,658.62
  5. Step 5: Solve for x
    x = 547,185,398,658.62/839,698.24
  6. Step 6: Final answer
    x = 651,645.28

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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.