Home / 1,011,161.72-1,395,394.62-558,443

Finding the Fourth Proportional to 1,011,161.72, 1,395,394.62 and 558,443

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Solution

The fourth proportional to 1,011,161.72, 1,395,394.62 and 558,443 is: 770,646.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,161.72 : 1,395,394.62 = 558,443 : x
  2. Step 2: Convert to fraction form
    1,011,161.72/1,395,394.62 = 558,443/x
  3. Step 3: Cross multiply
    1,011,161.72x = 1,395,394.62 × 558,443
  4. Step 4: Simplify right side
    1,011,161.72x = 779,248,357,776.66
  5. Step 5: Solve for x
    x = 779,248,357,776.66/1,011,161.72
  6. Step 6: Final answer
    x = 770,646.62

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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.