Home / 1,007,390.82-1,390,208.55-554,698.02

Finding the Fourth Proportional to 1,007,390.82, 1,390,208.55 and 554,698.02

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Solution

The fourth proportional to 1,007,390.82, 1,390,208.55 and 554,698.02 is: 765,488.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,390.82 : 1,390,208.55 = 554,698.02 : x
  2. Step 2: Convert to fraction form
    1,007,390.82/1,390,208.55 = 554,698.02/x
  3. Step 3: Cross multiply
    1,007,390.82x = 1,390,208.55 × 554,698.02
  4. Step 4: Simplify right side
    1,007,390.82x = 771,145,930,072.07
  5. Step 5: Solve for x
    x = 771,145,930,072.07/1,007,390.82
  6. Step 6: Final answer
    x = 765,488.34

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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.