Home / 785,827.40-1,178,741.10-667,729.40

Finding the Fourth Proportional to 785,827.40, 1,178,741.10 and 667,729.40

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Solution

The fourth proportional to 785,827.40, 1,178,741.10 and 667,729.40 is: 1,001,594.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,827.40 : 1,178,741.10 = 667,729.40 : x
  2. Step 2: Convert to fraction form
    785,827.40/1,178,741.10 = 667,729.40/x
  3. Step 3: Cross multiply
    785,827.40x = 1,178,741.10 × 667,729.40
  4. Step 4: Simplify right side
    785,827.40x = 787,080,087,458.34
  5. Step 5: Solve for x
    x = 787,080,087,458.34/785,827.40
  6. Step 6: Final answer
    x = 1,001,594.10

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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.