Home / 840,305.46-1,159,719.56-477,783.63

Finding the Fourth Proportional to 840,305.46, 1,159,719.56 and 477,783.63

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Solution

The fourth proportional to 840,305.46, 1,159,719.56 and 477,783.63 is: 659,397.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,305.46 : 1,159,719.56 = 477,783.63 : x
  2. Step 2: Convert to fraction form
    840,305.46/1,159,719.56 = 477,783.63/x
  3. Step 3: Cross multiply
    840,305.46x = 1,159,719.56 × 477,783.63
  4. Step 4: Simplify right side
    840,305.46x = 554,095,021,158.80
  5. Step 5: Solve for x
    x = 554,095,021,158.80/840,305.46
  6. Step 6: Final answer
    x = 659,397.14

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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.