Home / 628,601.49-867,470.04-342,123.62

Finding the Fourth Proportional to 628,601.49, 867,470.04 and 342,123.62

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Solution

The fourth proportional to 628,601.49, 867,470.04 and 342,123.62 is: 472,130.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,601.49 : 867,470.04 = 342,123.62 : x
  2. Step 2: Convert to fraction form
    628,601.49/867,470.04 = 342,123.62/x
  3. Step 3: Cross multiply
    628,601.49x = 867,470.04 × 342,123.62
  4. Step 4: Simplify right side
    628,601.49x = 296,781,985,989.00
  5. Step 5: Solve for x
    x = 296,781,985,989.00/628,601.49
  6. Step 6: Final answer
    x = 472,130.58

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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.