Home / 943,298.78-1,301,709.42-513,577.98

Finding the Fourth Proportional to 943,298.78, 1,301,709.42 and 513,577.98

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Solution

The fourth proportional to 943,298.78, 1,301,709.42 and 513,577.98 is: 708,714.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,298.78 : 1,301,709.42 = 513,577.98 : x
  2. Step 2: Convert to fraction form
    943,298.78/1,301,709.42 = 513,577.98/x
  3. Step 3: Cross multiply
    943,298.78x = 1,301,709.42 × 513,577.98
  4. Step 4: Simplify right side
    943,298.78x = 668,529,294,470.57
  5. Step 5: Solve for x
    x = 668,529,294,470.57/943,298.78
  6. Step 6: Final answer
    x = 708,714.26

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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.