Home / 918,512.58-1,267,448.12-510,631.96

Finding the Fourth Proportional to 918,512.58, 1,267,448.12 and 510,631.96

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Solution

The fourth proportional to 918,512.58, 1,267,448.12 and 510,631.96 is: 704,616.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,512.58 : 1,267,448.12 = 510,631.96 : x
  2. Step 2: Convert to fraction form
    918,512.58/1,267,448.12 = 510,631.96/x
  3. Step 3: Cross multiply
    918,512.58x = 1,267,448.12 × 510,631.96
  4. Step 4: Simplify right side
    918,512.58x = 647,199,517,713.92
  5. Step 5: Solve for x
    x = 647,199,517,713.92/918,512.58
  6. Step 6: Final answer
    x = 704,616.93

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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.