Home / 1,111,175.42-1,666,763.74-312,456.98

Finding the Fourth Proportional to 1,111,175.42, 1,666,763.74 and 312,456.98

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Solution

The fourth proportional to 1,111,175.42, 1,666,763.74 and 312,456.98 is: 468,685.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,175.42 : 1,666,763.74 = 312,456.98 : x
  2. Step 2: Convert to fraction form
    1,111,175.42/1,666,763.74 = 312,456.98/x
  3. Step 3: Cross multiply
    1,111,175.42x = 1,666,763.74 × 312,456.98
  4. Step 4: Simplify right side
    1,111,175.42x = 520,791,964,573.91
  5. Step 5: Solve for x
    x = 520,791,964,573.91/1,111,175.42
  6. Step 6: Final answer
    x = 468,685.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.