Home / 1,005,290.96-1,507,935.48-257,335.76

Finding the Fourth Proportional to 1,005,290.96, 1,507,935.48 and 257,335.76

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Solution

The fourth proportional to 1,005,290.96, 1,507,935.48 and 257,335.76 is: 386,003.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,290.96 : 1,507,935.48 = 257,335.76 : x
  2. Step 2: Convert to fraction form
    1,005,290.96/1,507,935.48 = 257,335.76/x
  3. Step 3: Cross multiply
    1,005,290.96x = 1,507,935.48 × 257,335.76
  4. Step 4: Simplify right side
    1,005,290.96x = 388,045,722,776.77
  5. Step 5: Solve for x
    x = 388,045,722,776.77/1,005,290.96
  6. Step 6: Final answer
    x = 386,003.39

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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.