Home / 665,747.37-918,473.18-423,986.67

Finding the Fourth Proportional to 665,747.37, 918,473.18 and 423,986.67

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Solution

The fourth proportional to 665,747.37, 918,473.18 and 423,986.67 is: 584,937.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,747.37 : 918,473.18 = 423,986.67 : x
  2. Step 2: Convert to fraction form
    665,747.37/918,473.18 = 423,986.67/x
  3. Step 3: Cross multiply
    665,747.37x = 918,473.18 × 423,986.67
  4. Step 4: Simplify right side
    665,747.37x = 389,420,382,952.58
  5. Step 5: Solve for x
    x = 389,420,382,952.58/665,747.37
  6. Step 6: Final answer
    x = 584,937.17

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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.