Home / 815,779.76-1,125,807.66-558,196.65

Finding the Fourth Proportional to 815,779.76, 1,125,807.66 and 558,196.65

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Solution

The fourth proportional to 815,779.76, 1,125,807.66 and 558,196.65 is: 770,333.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,779.76 : 1,125,807.66 = 558,196.65 : x
  2. Step 2: Convert to fraction form
    815,779.76/1,125,807.66 = 558,196.65/x
  3. Step 3: Cross multiply
    815,779.76x = 1,125,807.66 × 558,196.65
  4. Step 4: Simplify right side
    815,779.76x = 628,422,064,356.34
  5. Step 5: Solve for x
    x = 628,422,064,356.34/815,779.76
  6. Step 6: Final answer
    x = 770,333.00

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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.