Home / 864,098.70-1,296,148.05-303,133.20

Finding the Fourth Proportional to 864,098.70, 1,296,148.05 and 303,133.20

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Solution

The fourth proportional to 864,098.70, 1,296,148.05 and 303,133.20 is: 454,699.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,098.70 : 1,296,148.05 = 303,133.20 : x
  2. Step 2: Convert to fraction form
    864,098.70/1,296,148.05 = 303,133.20/x
  3. Step 3: Cross multiply
    864,098.70x = 1,296,148.05 × 303,133.20
  4. Step 4: Simplify right side
    864,098.70x = 392,905,506,070.26
  5. Step 5: Solve for x
    x = 392,905,506,070.26/864,098.70
  6. Step 6: Final answer
    x = 454,699.80

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Double scale
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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.