Home / 428,487.77-589,966.94-363,822.23

Finding the Fourth Proportional to 428,487.77, 589,966.94 and 363,822.23

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Solution

The fourth proportional to 428,487.77, 589,966.94 and 363,822.23 is: 500,931.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,487.77 : 589,966.94 = 363,822.23 : x
  2. Step 2: Convert to fraction form
    428,487.77/589,966.94 = 363,822.23/x
  3. Step 3: Cross multiply
    428,487.77x = 589,966.94 × 363,822.23
  4. Step 4: Simplify right side
    428,487.77x = 214,643,090,121.55
  5. Step 5: Solve for x
    x = 214,643,090,121.55/428,487.77
  6. Step 6: Final answer
    x = 500,931.66

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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.