Home / 1,007,704.12-1,390,567.89-554,995.12

Finding the Fourth Proportional to 1,007,704.12, 1,390,567.89 and 554,995.12

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Solution

The fourth proportional to 1,007,704.12, 1,390,567.89 and 554,995.12 is: 765,858.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,704.12 : 1,390,567.89 = 554,995.12 : x
  2. Step 2: Convert to fraction form
    1,007,704.12/1,390,567.89 = 554,995.12/x
  3. Step 3: Cross multiply
    1,007,704.12x = 1,390,567.89 × 554,995.12
  4. Step 4: Simplify right side
    1,007,704.12x = 771,758,392,978.70
  5. Step 5: Solve for x
    x = 771,758,392,978.70/1,007,704.12
  6. Step 6: Final answer
    x = 765,858.13

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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.