Home / 548,835.84-757,425.20-307,116.30

Finding the Fourth Proportional to 548,835.84, 757,425.20 and 307,116.30

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Solution

The fourth proportional to 548,835.84, 757,425.20 and 307,116.30 is: 423,838.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,835.84 : 757,425.20 = 307,116.30 : x
  2. Step 2: Convert to fraction form
    548,835.84/757,425.20 = 307,116.30/x
  3. Step 3: Cross multiply
    548,835.84x = 757,425.20 × 307,116.30
  4. Step 4: Simplify right side
    548,835.84x = 232,617,625,718.55
  5. Step 5: Solve for x
    x = 232,617,625,718.55/548,835.84
  6. Step 6: Final answer
    x = 423,838.26

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Double scale
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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.