Home / 840,555.58-1,159,999.23-478,012.54

Finding the Fourth Proportional to 840,555.58, 1,159,999.23 and 478,012.54

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Solution

The fourth proportional to 840,555.58, 1,159,999.23 and 478,012.54 is: 659,675.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,555.58 : 1,159,999.23 = 478,012.54 : x
  2. Step 2: Convert to fraction form
    840,555.58/1,159,999.23 = 478,012.54/x
  3. Step 3: Cross multiply
    840,555.58x = 1,159,999.23 × 478,012.54
  4. Step 4: Simplify right side
    840,555.58x = 554,494,178,330.34
  5. Step 5: Solve for x
    x = 554,494,178,330.34/840,555.58
  6. Step 6: Final answer
    x = 659,675.80

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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.