Home / 870,080.21-1,200,718.88-488,115.19

Finding the Fourth Proportional to 870,080.21, 1,200,718.88 and 488,115.19

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Solution

The fourth proportional to 870,080.21, 1,200,718.88 and 488,115.19 is: 673,603.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,080.21 : 1,200,718.88 = 488,115.19 : x
  2. Step 2: Convert to fraction form
    870,080.21/1,200,718.88 = 488,115.19/x
  3. Step 3: Cross multiply
    870,080.21x = 1,200,718.88 × 488,115.19
  4. Step 4: Simplify right side
    870,080.21x = 586,089,118,805.41
  5. Step 5: Solve for x
    x = 586,089,118,805.41/870,080.21
  6. Step 6: Final answer
    x = 673,603.55

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.