Home / 712,307.16-1,068,516.30-206,876.40

Finding the Fourth Proportional to 712,307.16, 1,068,516.30 and 206,876.40

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Solution

The fourth proportional to 712,307.16, 1,068,516.30 and 206,876.40 is: 310,330.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,307.16 : 1,068,516.30 = 206,876.40 : x
  2. Step 2: Convert to fraction form
    712,307.16/1,068,516.30 = 206,876.40/x
  3. Step 3: Cross multiply
    712,307.16x = 1,068,516.30 × 206,876.40
  4. Step 4: Simplify right side
    712,307.16x = 221,050,805,485.32
  5. Step 5: Solve for x
    x = 221,050,805,485.32/712,307.16
  6. Step 6: Final answer
    x = 310,330.74

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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.