Home / 1,776,543.65-2,664,815.73-428,706.26

Finding the Fourth Proportional to 1,776,543.65, 2,664,815.73 and 428,706.26

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Solution

The fourth proportional to 1,776,543.65, 2,664,815.73 and 428,706.26 is: 643,059.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776,543.65 : 2,664,815.73 = 428,706.26 : x
  2. Step 2: Convert to fraction form
    1,776,543.65/2,664,815.73 = 428,706.26/x
  3. Step 3: Cross multiply
    1,776,543.65x = 2,664,815.73 × 428,706.26
  4. Step 4: Simplify right side
    1,776,543.65x = 1,142,423,197,659.86
  5. Step 5: Solve for x
    x = 1,142,423,197,659.86/1,776,543.65
  6. Step 6: Final answer
    x = 643,059.46

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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.