Home / 990,503.40-1,485,755.10-754,307.40

Finding the Fourth Proportional to 990,503.40, 1,485,755.10 and 754,307.40

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Solution

The fourth proportional to 990,503.40, 1,485,755.10 and 754,307.40 is: 1,131,461.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,503.40 : 1,485,755.10 = 754,307.40 : x
  2. Step 2: Convert to fraction form
    990,503.40/1,485,755.10 = 754,307.40/x
  3. Step 3: Cross multiply
    990,503.40x = 1,485,755.10 × 754,307.40
  4. Step 4: Simplify right side
    990,503.40x = 1,120,716,066,517.74
  5. Step 5: Solve for x
    x = 1,120,716,066,517.74/990,503.40
  6. Step 6: Final answer
    x = 1,131,461.10

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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.