Home / 842,559.61-1,263,714.81-309,956.07

Finding the Fourth Proportional to 842,559.61, 1,263,714.81 and 309,956.07

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Solution

The fourth proportional to 842,559.61, 1,263,714.81 and 309,956.07 is: 464,888.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,559.61 : 1,263,714.81 = 309,956.07 : x
  2. Step 2: Convert to fraction form
    842,559.61/1,263,714.81 = 309,956.07/x
  3. Step 3: Cross multiply
    842,559.61x = 1,263,714.81 × 309,956.07
  4. Step 4: Simplify right side
    842,559.61x = 391,696,076,108.40
  5. Step 5: Solve for x
    x = 391,696,076,108.40/842,559.61
  6. Step 6: Final answer
    x = 464,888.27

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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.