Home / 870,263.81-1,200,984.75-488,318.84

Finding the Fourth Proportional to 870,263.81, 1,200,984.75 and 488,318.84

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Solution

The fourth proportional to 870,263.81, 1,200,984.75 and 488,318.84 is: 673,891.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,263.81 : 1,200,984.75 = 488,318.84 : x
  2. Step 2: Convert to fraction form
    870,263.81/1,200,984.75 = 488,318.84/x
  3. Step 3: Cross multiply
    870,263.81x = 1,200,984.75 × 488,318.84
  4. Step 4: Simplify right side
    870,263.81x = 586,463,482,980.15
  5. Step 5: Solve for x
    x = 586,463,482,980.15/870,263.81
  6. Step 6: Final answer
    x = 673,891.61

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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.