Home / 1,316,394.12-1,973,261.70-518,235.78

Finding the Fourth Proportional to 1,316,394.12, 1,973,261.70 and 518,235.78

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Solution

The fourth proportional to 1,316,394.12, 1,973,261.70 and 518,235.78 is: 776,830.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,394.12 : 1,973,261.70 = 518,235.78 : x
  2. Step 2: Convert to fraction form
    1,316,394.12/1,973,261.70 = 518,235.78/x
  3. Step 3: Cross multiply
    1,316,394.12x = 1,973,261.70 × 518,235.78
  4. Step 4: Simplify right side
    1,316,394.12x = 1,022,614,816,243.63
  5. Step 5: Solve for x
    x = 1,022,614,816,243.63/1,316,394.12
  6. Step 6: Final answer
    x = 776,830.28

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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.