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Finding the Fourth Proportional to 907,307.10, 1,360,960.65 and 807,579.90

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Solution

The fourth proportional to 907,307.10, 1,360,960.65 and 807,579.90 is: 1,211,369.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,307.10 : 1,360,960.65 = 807,579.90 : x
  2. Step 2: Convert to fraction form
    907,307.10/1,360,960.65 = 807,579.90/x
  3. Step 3: Cross multiply
    907,307.10x = 1,360,960.65 × 807,579.90
  4. Step 4: Simplify right side
    907,307.10x = 1,099,084,465,630.94
  5. Step 5: Solve for x
    x = 1,099,084,465,630.94/907,307.10
  6. Step 6: Final answer
    x = 1,211,369.85

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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.