Home / 1,360,933.76-1,877,966.40-788,012.72

Finding the Fourth Proportional to 1,360,933.76, 1,877,966.40 and 788,012.72

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Solution

The fourth proportional to 1,360,933.76, 1,877,966.40 and 788,012.72 is: 1,087,386.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360,933.76 : 1,877,966.40 = 788,012.72 : x
  2. Step 2: Convert to fraction form
    1,360,933.76/1,877,966.40 = 788,012.72/x
  3. Step 3: Cross multiply
    1,360,933.76x = 1,877,966.40 × 788,012.72
  4. Step 4: Simplify right side
    1,360,933.76x = 1,479,861,410,932.61
  5. Step 5: Solve for x
    x = 1,479,861,410,932.61/1,360,933.76
  6. Step 6: Final answer
    x = 1,087,386.80

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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.