Home / 545,669.81-753,032.13-313,134.64

Finding the Fourth Proportional to 545,669.81, 753,032.13 and 313,134.64

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Solution

The fourth proportional to 545,669.81, 753,032.13 and 313,134.64 is: 432,130.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,669.81 : 753,032.13 = 313,134.64 : x
  2. Step 2: Convert to fraction form
    545,669.81/753,032.13 = 313,134.64/x
  3. Step 3: Cross multiply
    545,669.81x = 753,032.13 × 313,134.64
  4. Step 4: Simplify right side
    545,669.81x = 235,800,446,114.95
  5. Step 5: Solve for x
    x = 235,800,446,114.95/545,669.81
  6. Step 6: Final answer
    x = 432,130.27

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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.