Home / 996,920.80-1,495,381.20-919,938.40

Finding the Fourth Proportional to 996,920.80, 1,495,381.20 and 919,938.40

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Solution

The fourth proportional to 996,920.80, 1,495,381.20 and 919,938.40 is: 1,379,907.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,920.80 : 1,495,381.20 = 919,938.40 : x
  2. Step 2: Convert to fraction form
    996,920.80/1,495,381.20 = 919,938.40/x
  3. Step 3: Cross multiply
    996,920.80x = 1,495,381.20 × 919,938.40
  4. Step 4: Simplify right side
    996,920.80x = 1,375,658,588,518.08
  5. Step 5: Solve for x
    x = 1,375,658,588,518.08/996,920.80
  6. Step 6: Final answer
    x = 1,379,907.60

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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.