Home / 886,703.81-1,330,242.62-287,618.36

Finding the Fourth Proportional to 886,703.81, 1,330,242.62 and 287,618.36

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Solution

The fourth proportional to 886,703.81, 1,330,242.62 and 287,618.36 is: 431,488.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,703.81 : 1,330,242.62 = 287,618.36 : x
  2. Step 2: Convert to fraction form
    886,703.81/1,330,242.62 = 287,618.36/x
  3. Step 3: Cross multiply
    886,703.81x = 1,330,242.62 × 287,618.36
  4. Step 4: Simplify right side
    886,703.81x = 382,602,192,677.20
  5. Step 5: Solve for x
    x = 382,602,192,677.20/886,703.81
  6. Step 6: Final answer
    x = 431,488.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.