Home / 778,990.74-1,075,576.62-503,511.66

Finding the Fourth Proportional to 778,990.74, 1,075,576.62 and 503,511.66

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Solution

The fourth proportional to 778,990.74, 1,075,576.62 and 503,511.66 is: 695,214.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,990.74 : 1,075,576.62 = 503,511.66 : x
  2. Step 2: Convert to fraction form
    778,990.74/1,075,576.62 = 503,511.66/x
  3. Step 3: Cross multiply
    778,990.74x = 1,075,576.62 × 503,511.66
  4. Step 4: Simplify right side
    778,990.74x = 541,565,369,393.39
  5. Step 5: Solve for x
    x = 541,565,369,393.39/778,990.74
  6. Step 6: Final answer
    x = 695,214.13

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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.