Home / 990,501.40-1,485,752.10-754,305.40

Finding the Fourth Proportional to 990,501.40, 1,485,752.10 and 754,305.40

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Solution

The fourth proportional to 990,501.40, 1,485,752.10 and 754,305.40 is: 1,131,458.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,501.40 : 1,485,752.10 = 754,305.40 : x
  2. Step 2: Convert to fraction form
    990,501.40/1,485,752.10 = 754,305.40/x
  3. Step 3: Cross multiply
    990,501.40x = 1,485,752.10 × 754,305.40
  4. Step 4: Simplify right side
    990,501.40x = 1,120,710,832,091.34
  5. Step 5: Solve for x
    x = 1,120,710,832,091.34/990,501.40
  6. Step 6: Final answer
    x = 1,131,458.10

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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.