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Finding the Fourth Proportional to 617,009.40, 925,514.10 and 379,582.20

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Solution

The fourth proportional to 617,009.40, 925,514.10 and 379,582.20 is: 569,373.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,009.40 : 925,514.10 = 379,582.20 : x
  2. Step 2: Convert to fraction form
    617,009.40/925,514.10 = 379,582.20/x
  3. Step 3: Cross multiply
    617,009.40x = 925,514.10 × 379,582.20
  4. Step 4: Simplify right side
    617,009.40x = 351,308,678,209.02
  5. Step 5: Solve for x
    x = 351,308,678,209.02/617,009.40
  6. Step 6: Final answer
    x = 569,373.30

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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.