Home / 700,718.76-1,051,864.38-280,287.72

Finding the Fourth Proportional to 700,718.76, 1,051,864.38 and 280,287.72

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Solution

The fourth proportional to 700,718.76, 1,051,864.38 and 280,287.72 is: 420,746.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,718.76 : 1,051,864.38 = 280,287.72 : x
  2. Step 2: Convert to fraction form
    700,718.76/1,051,864.38 = 280,287.72/x
  3. Step 3: Cross multiply
    700,718.76x = 1,051,864.38 × 280,287.72
  4. Step 4: Simplify right side
    700,718.76x = 294,824,668,819.41
  5. Step 5: Solve for x
    x = 294,824,668,819.41/700,718.76
  6. Step 6: Final answer
    x = 420,746.08

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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.