Home / 438,020.30-657,030.45-298,052.30

Finding the Fourth Proportional to 438,020.30, 657,030.45 and 298,052.30

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Solution

The fourth proportional to 438,020.30, 657,030.45 and 298,052.30 is: 447,078.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,020.30 : 657,030.45 = 298,052.30 : x
  2. Step 2: Convert to fraction form
    438,020.30/657,030.45 = 298,052.30/x
  3. Step 3: Cross multiply
    438,020.30x = 657,030.45 × 298,052.30
  4. Step 4: Simplify right side
    438,020.30x = 195,829,436,792.54
  5. Step 5: Solve for x
    x = 195,829,436,792.54/438,020.30
  6. Step 6: Final answer
    x = 447,078.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.