Home / 1,178,434.61-1,626,193.98-720,316.23

Finding the Fourth Proportional to 1,178,434.61, 1,626,193.98 and 720,316.23

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Solution

The fourth proportional to 1,178,434.61, 1,626,193.98 and 720,316.23 is: 994,008.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,434.61 : 1,626,193.98 = 720,316.23 : x
  2. Step 2: Convert to fraction form
    1,178,434.61/1,626,193.98 = 720,316.23/x
  3. Step 3: Cross multiply
    1,178,434.61x = 1,626,193.98 × 720,316.23
  4. Step 4: Simplify right side
    1,178,434.61x = 1,171,373,916,922.30
  5. Step 5: Solve for x
    x = 1,171,373,916,922.30/1,178,434.61
  6. Step 6: Final answer
    x = 994,008.41

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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.