Home / 870,541.38-1,200,742.65-709,396.74

Finding the Fourth Proportional to 870,541.38, 1,200,742.65 and 709,396.74

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Solution

The fourth proportional to 870,541.38, 1,200,742.65 and 709,396.74 is: 978,474.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,541.38 : 1,200,742.65 = 709,396.74 : x
  2. Step 2: Convert to fraction form
    870,541.38/1,200,742.65 = 709,396.74/x
  3. Step 3: Cross multiply
    870,541.38x = 1,200,742.65 × 709,396.74
  4. Step 4: Simplify right side
    870,541.38x = 851,802,921,488.96
  5. Step 5: Solve for x
    x = 851,802,921,488.96/870,541.38
  6. Step 6: Final answer
    x = 978,474.94

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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.