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Finding the Fourth Proportional to 978,587.37, 1,467,528.93 and 338,717.34

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Solution

The fourth proportional to 978,587.37, 1,467,528.93 and 338,717.34 is: 507,954.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,587.37 : 1,467,528.93 = 338,717.34 : x
  2. Step 2: Convert to fraction form
    978,587.37/1,467,528.93 = 338,717.34/x
  3. Step 3: Cross multiply
    978,587.37x = 1,467,528.93 × 338,717.34
  4. Step 4: Simplify right side
    978,587.37x = 497,077,495,542.65
  5. Step 5: Solve for x
    x = 497,077,495,542.65/978,587.37
  6. Step 6: Final answer
    x = 507,954.13

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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.