Home / 628,549.99-867,382.36-342,063.93

Finding the Fourth Proportional to 628,549.99, 867,382.36 and 342,063.93

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Solution

The fourth proportional to 628,549.99, 867,382.36 and 342,063.93 is: 472,039.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,549.99 : 867,382.36 = 342,063.93 : x
  2. Step 2: Convert to fraction form
    628,549.99/867,382.36 = 342,063.93/x
  3. Step 3: Cross multiply
    628,549.99x = 867,382.36 × 342,063.93
  4. Step 4: Simplify right side
    628,549.99x = 296,700,218,874.28
  5. Step 5: Solve for x
    x = 296,700,218,874.28/628,549.99
  6. Step 6: Final answer
    x = 472,039.18

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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.