Home / 756,020.40-1,134,030.60-257,384.40

Finding the Fourth Proportional to 756,020.40, 1,134,030.60 and 257,384.40

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Solution

The fourth proportional to 756,020.40, 1,134,030.60 and 257,384.40 is: 386,076.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,020.40 : 1,134,030.60 = 257,384.40 : x
  2. Step 2: Convert to fraction form
    756,020.40/1,134,030.60 = 257,384.40/x
  3. Step 3: Cross multiply
    756,020.40x = 1,134,030.60 × 257,384.40
  4. Step 4: Simplify right side
    756,020.40x = 291,881,785,562.64
  5. Step 5: Solve for x
    x = 291,881,785,562.64/756,020.40
  6. Step 6: Final answer
    x = 386,076.60

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Double scale
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Similar ratio
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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.