Home / 999,530.66-1,379,352.31-540,645.21

Finding the Fourth Proportional to 999,530.66, 1,379,352.31 and 540,645.21

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Solution

The fourth proportional to 999,530.66, 1,379,352.31 and 540,645.21 is: 746,090.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,530.66 : 1,379,352.31 = 540,645.21 : x
  2. Step 2: Convert to fraction form
    999,530.66/1,379,352.31 = 540,645.21/x
  3. Step 3: Cross multiply
    999,530.66x = 1,379,352.31 × 540,645.21
  4. Step 4: Simplify right side
    999,530.66x = 745,740,209,703.95
  5. Step 5: Solve for x
    x = 745,740,209,703.95/999,530.66
  6. Step 6: Final answer
    x = 746,090.38

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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.