Home / 778,789-1,168,390.86-246,319.72

Finding the Fourth Proportional to 778,789, 1,168,390.86 and 246,319.72

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Solution

The fourth proportional to 778,789, 1,168,390.86 and 246,319.72 is: 369,545.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,789 : 1,168,390.86 = 246,319.72 : x
  2. Step 2: Convert to fraction form
    778,789/1,168,390.86 = 246,319.72/x
  3. Step 3: Cross multiply
    778,789x = 1,168,390.86 × 246,319.72
  4. Step 4: Simplify right side
    778,789x = 287,797,709,485.76
  5. Step 5: Solve for x
    x = 287,797,709,485.76/778,789
  6. Step 6: Final answer
    x = 369,545.16

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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.