Home / 1,549,390.10-2,138,357.93-870,457.82

Finding the Fourth Proportional to 1,549,390.10, 2,138,357.93 and 870,457.82

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Solution

The fourth proportional to 1,549,390.10, 2,138,357.93 and 870,457.82 is: 1,201,343.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549,390.10 : 2,138,357.93 = 870,457.82 : x
  2. Step 2: Convert to fraction form
    1,549,390.10/2,138,357.93 = 870,457.82/x
  3. Step 3: Cross multiply
    1,549,390.10x = 2,138,357.93 × 870,457.82
  4. Step 4: Simplify right side
    1,549,390.10x = 1,861,350,383,121.12
  5. Step 5: Solve for x
    x = 1,861,350,383,121.12/1,549,390.10
  6. Step 6: Final answer
    x = 1,201,343.92

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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.