Home / 879,631.80-1,319,447.70-667,055.40

Finding the Fourth Proportional to 879,631.80, 1,319,447.70 and 667,055.40

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Solution

The fourth proportional to 879,631.80, 1,319,447.70 and 667,055.40 is: 1,000,583.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,631.80 : 1,319,447.70 = 667,055.40 : x
  2. Step 2: Convert to fraction form
    879,631.80/1,319,447.70 = 667,055.40/x
  3. Step 3: Cross multiply
    879,631.80x = 1,319,447.70 × 667,055.40
  4. Step 4: Simplify right side
    879,631.80x = 880,144,713,302.58
  5. Step 5: Solve for x
    x = 880,144,713,302.58/879,631.80
  6. Step 6: Final answer
    x = 1,000,583.10

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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.