Home / 1,292,278.80-1,939,303.93-450,830.55

Finding the Fourth Proportional to 1,292,278.80, 1,939,303.93 and 450,830.55

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Solution

The fourth proportional to 1,292,278.80, 1,939,303.93 and 450,830.55 is: 676,554.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,278.80 : 1,939,303.93 = 450,830.55 : x
  2. Step 2: Convert to fraction form
    1,292,278.80/1,939,303.93 = 450,830.55/x
  3. Step 3: Cross multiply
    1,292,278.80x = 1,939,303.93 × 450,830.55
  4. Step 4: Simplify right side
    1,292,278.80x = 874,297,457,379.06
  5. Step 5: Solve for x
    x = 874,297,457,379.06/1,292,278.80
  6. Step 6: Final answer
    x = 676,554.82

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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.