Home / 1,218,312.94-1,680,743.96-734,609.36

Finding the Fourth Proportional to 1,218,312.94, 1,680,743.96 and 734,609.36

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Solution

The fourth proportional to 1,218,312.94, 1,680,743.96 and 734,609.36 is: 1,013,442.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,312.94 : 1,680,743.96 = 734,609.36 : x
  2. Step 2: Convert to fraction form
    1,218,312.94/1,680,743.96 = 734,609.36/x
  3. Step 3: Cross multiply
    1,218,312.94x = 1,680,743.96 × 734,609.36
  4. Step 4: Simplify right side
    1,218,312.94x = 1,234,690,232,702.70
  5. Step 5: Solve for x
    x = 1,234,690,232,702.70/1,218,312.94
  6. Step 6: Final answer
    x = 1,013,442.60

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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.