Home / 874,392.98-1,206,580.46-645,077.93

Finding the Fourth Proportional to 874,392.98, 1,206,580.46 and 645,077.93

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Solution

The fourth proportional to 874,392.98, 1,206,580.46 and 645,077.93 is: 890,147.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,392.98 : 1,206,580.46 = 645,077.93 : x
  2. Step 2: Convert to fraction form
    874,392.98/1,206,580.46 = 645,077.93/x
  3. Step 3: Cross multiply
    874,392.98x = 1,206,580.46 × 645,077.93
  4. Step 4: Simplify right side
    874,392.98x = 778,338,416,256.96
  5. Step 5: Solve for x
    x = 778,338,416,256.96/874,392.98
  6. Step 6: Final answer
    x = 890,147.15

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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.