Home / 879,979.50-1,319,992.04-280,940.16

Finding the Fourth Proportional to 879,979.50, 1,319,992.04 and 280,940.16

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Solution

The fourth proportional to 879,979.50, 1,319,992.04 and 280,940.16 is: 421,417.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,979.50 : 1,319,992.04 = 280,940.16 : x
  2. Step 2: Convert to fraction form
    879,979.50/1,319,992.04 = 280,940.16/x
  3. Step 3: Cross multiply
    879,979.50x = 1,319,992.04 × 280,940.16
  4. Step 4: Simplify right side
    879,979.50x = 370,838,774,916.33
  5. Step 5: Solve for x
    x = 370,838,774,916.33/879,979.50
  6. Step 6: Final answer
    x = 421,417.52

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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.