Home / 710,342.23-1,065,933.71-261,378.38

Finding the Fourth Proportional to 710,342.23, 1,065,933.71 and 261,378.38

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Solution

The fourth proportional to 710,342.23, 1,065,933.71 and 261,378.38 is: 392,222.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,342.23 : 1,065,933.71 = 261,378.38 : x
  2. Step 2: Convert to fraction form
    710,342.23/1,065,933.71 = 261,378.38/x
  3. Step 3: Cross multiply
    710,342.23x = 1,065,933.71 × 261,378.38
  4. Step 4: Simplify right side
    710,342.23x = 278,612,026,307.19
  5. Step 5: Solve for x
    x = 278,612,026,307.19/710,342.23
  6. Step 6: Final answer
    x = 392,222.25

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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.