Home / 1,008,788.63-1,392,128.30-556,089.35

Finding the Fourth Proportional to 1,008,788.63, 1,392,128.30 and 556,089.35

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Solution

The fourth proportional to 1,008,788.63, 1,392,128.30 and 556,089.35 is: 767,403.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,788.63 : 1,392,128.30 = 556,089.35 : x
  2. Step 2: Convert to fraction form
    1,008,788.63/1,392,128.30 = 556,089.35/x
  3. Step 3: Cross multiply
    1,008,788.63x = 1,392,128.30 × 556,089.35
  4. Step 4: Simplify right side
    1,008,788.63x = 774,147,715,893.19
  5. Step 5: Solve for x
    x = 774,147,715,893.19/1,008,788.63
  6. Step 6: Final answer
    x = 767,403.30

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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.