Home / 780,446.41-1,077,189.65-474,457.92

Finding the Fourth Proportional to 780,446.41, 1,077,189.65 and 474,457.92

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Solution

The fourth proportional to 780,446.41, 1,077,189.65 and 474,457.92 is: 654,857.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,446.41 : 1,077,189.65 = 474,457.92 : x
  2. Step 2: Convert to fraction form
    780,446.41/1,077,189.65 = 474,457.92/x
  3. Step 3: Cross multiply
    780,446.41x = 1,077,189.65 × 474,457.92
  4. Step 4: Simplify right side
    780,446.41x = 511,081,160,784.53
  5. Step 5: Solve for x
    x = 511,081,160,784.53/780,446.41
  6. Step 6: Final answer
    x = 654,857.47

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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.