Home / 870,977.52-1,306,479.41-302,376.68

Finding the Fourth Proportional to 870,977.52, 1,306,479.41 and 302,376.68

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Solution

The fourth proportional to 870,977.52, 1,306,479.41 and 302,376.68 is: 453,569.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,977.52 : 1,306,479.41 = 302,376.68 : x
  2. Step 2: Convert to fraction form
    870,977.52/1,306,479.41 = 302,376.68/x
  3. Step 3: Cross multiply
    870,977.52x = 1,306,479.41 × 302,376.68
  4. Step 4: Simplify right side
    870,977.52x = 395,048,900,707.70
  5. Step 5: Solve for x
    x = 395,048,900,707.70/870,977.52
  6. Step 6: Final answer
    x = 453,569.57

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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.