Home / 993,909.30-1,371,589.65-558,266.10

Finding the Fourth Proportional to 993,909.30, 1,371,589.65 and 558,266.10

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Solution

The fourth proportional to 993,909.30, 1,371,589.65 and 558,266.10 is: 770,404.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,909.30 : 1,371,589.65 = 558,266.10 : x
  2. Step 2: Convert to fraction form
    993,909.30/1,371,589.65 = 558,266.10/x
  3. Step 3: Cross multiply
    993,909.30x = 1,371,589.65 × 558,266.10
  4. Step 4: Simplify right side
    993,909.30x = 765,712,004,705.87
  5. Step 5: Solve for x
    x = 765,712,004,705.87/993,909.30
  6. Step 6: Final answer
    x = 770,404.31

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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.