Home / 1,277,785.50-1,916,116.92-478,506.48

Finding the Fourth Proportional to 1,277,785.50, 1,916,116.92 and 478,506.48

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Solution

The fourth proportional to 1,277,785.50, 1,916,116.92 and 478,506.48 is: 717,549.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,785.50 : 1,916,116.92 = 478,506.48 : x
  2. Step 2: Convert to fraction form
    1,277,785.50/1,916,116.92 = 478,506.48/x
  3. Step 3: Cross multiply
    1,277,785.50x = 1,916,116.92 × 478,506.48
  4. Step 4: Simplify right side
    1,277,785.50x = 916,874,362,657.64
  5. Step 5: Solve for x
    x = 916,874,362,657.64/1,277,785.50
  6. Step 6: Final answer
    x = 717,549.51

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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.