Home / 1,288,436.02-1,778,063.06-707,712.82

Finding the Fourth Proportional to 1,288,436.02, 1,778,063.06 and 707,712.82

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Solution

The fourth proportional to 1,288,436.02, 1,778,063.06 and 707,712.82 is: 976,655.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,436.02 : 1,778,063.06 = 707,712.82 : x
  2. Step 2: Convert to fraction form
    1,288,436.02/1,778,063.06 = 707,712.82/x
  3. Step 3: Cross multiply
    1,288,436.02x = 1,778,063.06 × 707,712.82
  4. Step 4: Simplify right side
    1,288,436.02x = 1,258,358,017,647.65
  5. Step 5: Solve for x
    x = 1,258,358,017,647.65/1,288,436.02
  6. Step 6: Final answer
    x = 976,655.42

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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.