Home / 867,988.40-1,301,982.60-307,079.60

Finding the Fourth Proportional to 867,988.40, 1,301,982.60 and 307,079.60

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Solution

The fourth proportional to 867,988.40, 1,301,982.60 and 307,079.60 is: 460,619.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,988.40 : 1,301,982.60 = 307,079.60 : x
  2. Step 2: Convert to fraction form
    867,988.40/1,301,982.60 = 307,079.60/x
  3. Step 3: Cross multiply
    867,988.40x = 1,301,982.60 × 307,079.60
  4. Step 4: Simplify right side
    867,988.40x = 399,812,296,014.96
  5. Step 5: Solve for x
    x = 399,812,296,014.96/867,988.40
  6. Step 6: Final answer
    x = 460,619.40

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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.