Home / 890,943.78-1,228,313.03-707,790.05

Finding the Fourth Proportional to 890,943.78, 1,228,313.03 and 707,790.05

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Solution

The fourth proportional to 890,943.78, 1,228,313.03 and 707,790.05 is: 975,805.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,943.78 : 1,228,313.03 = 707,790.05 : x
  2. Step 2: Convert to fraction form
    890,943.78/1,228,313.03 = 707,790.05/x
  3. Step 3: Cross multiply
    890,943.78x = 1,228,313.03 × 707,790.05
  4. Step 4: Simplify right side
    890,943.78x = 869,387,731,238.84
  5. Step 5: Solve for x
    x = 869,387,731,238.84/890,943.78
  6. Step 6: Final answer
    x = 975,805.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.