Home / 786,836.32-1,178,261.46-487,900.72

Finding the Fourth Proportional to 786,836.32, 1,178,261.46 and 487,900.72

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Solution

The fourth proportional to 786,836.32, 1,178,261.46 and 487,900.72 is: 730,615.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,836.32 : 1,178,261.46 = 487,900.72 : x
  2. Step 2: Convert to fraction form
    786,836.32/1,178,261.46 = 487,900.72/x
  3. Step 3: Cross multiply
    786,836.32x = 1,178,261.46 × 487,900.72
  4. Step 4: Simplify right side
    786,836.32x = 574,874,614,682.25
  5. Step 5: Solve for x
    x = 574,874,614,682.25/786,836.32
  6. Step 6: Final answer
    x = 730,615.25

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.