Home / 548,820.30-757,407.15-307,130.70

Finding the Fourth Proportional to 548,820.30, 757,407.15 and 307,130.70

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Solution

The fourth proportional to 548,820.30, 757,407.15 and 307,130.70 is: 423,860.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,820.30 : 757,407.15 = 307,130.70 : x
  2. Step 2: Convert to fraction form
    548,820.30/757,407.15 = 307,130.70/x
  3. Step 3: Cross multiply
    548,820.30x = 757,407.15 × 307,130.70
  4. Step 4: Simplify right side
    548,820.30x = 232,622,988,164.51
  5. Step 5: Solve for x
    x = 232,622,988,164.51/548,820.30
  6. Step 6: Final answer
    x = 423,860.03

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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.