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Finding the Fourth Proportional to 891,907.50, 1,337,847.69 and 618,101.10

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Solution

The fourth proportional to 891,907.50, 1,337,847.69 and 618,101.10 is: 927,142.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,907.50 : 1,337,847.69 = 618,101.10 : x
  2. Step 2: Convert to fraction form
    891,907.50/1,337,847.69 = 618,101.10/x
  3. Step 3: Cross multiply
    891,907.50x = 1,337,847.69 × 618,101.10
  4. Step 4: Simplify right side
    891,907.50x = 826,925,128,821.46
  5. Step 5: Solve for x
    x = 826,925,128,821.46/891,907.50
  6. Step 6: Final answer
    x = 927,142.25

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1.5x scale

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.