Home / 756,428.32-1,134,518.40-307,131.04

Finding the Fourth Proportional to 756,428.32, 1,134,518.40 and 307,131.04

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Solution

The fourth proportional to 756,428.32, 1,134,518.40 and 307,131.04 is: 460,646.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,428.32 : 1,134,518.40 = 307,131.04 : x
  2. Step 2: Convert to fraction form
    756,428.32/1,134,518.40 = 307,131.04/x
  3. Step 3: Cross multiply
    756,428.32x = 1,134,518.40 × 307,131.04
  4. Step 4: Simplify right side
    756,428.32x = 348,445,816,091.14
  5. Step 5: Solve for x
    x = 348,445,816,091.14/756,428.32
  6. Step 6: Final answer
    x = 460,646.18

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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.