Home / 759,719.84-1,047,387.39-487,314.86

Finding the Fourth Proportional to 759,719.84, 1,047,387.39 and 487,314.86

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Solution

The fourth proportional to 759,719.84, 1,047,387.39 and 487,314.86 is: 671,836.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,719.84 : 1,047,387.39 = 487,314.86 : x
  2. Step 2: Convert to fraction form
    759,719.84/1,047,387.39 = 487,314.86/x
  3. Step 3: Cross multiply
    759,719.84x = 1,047,387.39 × 487,314.86
  4. Step 4: Simplify right side
    759,719.84x = 510,407,434,086.68
  5. Step 5: Solve for x
    x = 510,407,434,086.68/759,719.84
  6. Step 6: Final answer
    x = 671,836.39

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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.