Home / 778,788-1,168,389.36-246,318.72

Finding the Fourth Proportional to 778,788, 1,168,389.36 and 246,318.72

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Solution

The fourth proportional to 778,788, 1,168,389.36 and 246,318.72 is: 369,543.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,788 : 1,168,389.36 = 246,318.72 : x
  2. Step 2: Convert to fraction form
    778,788/1,168,389.36 = 246,318.72/x
  3. Step 3: Cross multiply
    778,788x = 1,168,389.36 × 246,318.72
  4. Step 4: Simplify right side
    778,788x = 287,796,171,616.82
  5. Step 5: Solve for x
    x = 287,796,171,616.82/778,788
  6. Step 6: Final answer
    x = 369,543.66

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1.5x scale

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.