Home / 1,007,795.19-1,390,757.31-555,086.19

Finding the Fourth Proportional to 1,007,795.19, 1,390,757.31 and 555,086.19

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Solution

The fourth proportional to 1,007,795.19, 1,390,757.31 and 555,086.19 is: 766,018.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,795.19 : 1,390,757.31 = 555,086.19 : x
  2. Step 2: Convert to fraction form
    1,007,795.19/1,390,757.31 = 555,086.19/x
  3. Step 3: Cross multiply
    1,007,795.19x = 1,390,757.31 × 555,086.19
  4. Step 4: Simplify right side
    1,007,795.19x = 771,990,176,422.55
  5. Step 5: Solve for x
    x = 771,990,176,422.55/1,007,795.19
  6. Step 6: Final answer
    x = 766,018.91

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Double scale
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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.