Home / 1,087,120.20-1,629,125.10-754,307.40

Finding the Fourth Proportional to 1,087,120.20, 1,629,125.10 and 754,307.40

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Solution

The fourth proportional to 1,087,120.20, 1,629,125.10 and 754,307.40 is: 1,130,382.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,120.20 : 1,629,125.10 = 754,307.40 : x
  2. Step 2: Convert to fraction form
    1,087,120.20/1,629,125.10 = 754,307.40/x
  3. Step 3: Cross multiply
    1,087,120.20x = 1,629,125.10 × 754,307.40
  4. Step 4: Simplify right side
    1,087,120.20x = 1,228,861,118,455.74
  5. Step 5: Solve for x
    x = 1,228,861,118,455.74/1,087,120.20
  6. Step 6: Final answer
    x = 1,130,382.01

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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.