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Finding the Fourth Proportional to 406,417.40, 609,626.10 and 246,985.10

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Solution

The fourth proportional to 406,417.40, 609,626.10 and 246,985.10 is: 370,477.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,417.40 : 609,626.10 = 246,985.10 : x
  2. Step 2: Convert to fraction form
    406,417.40/609,626.10 = 246,985.10/x
  3. Step 3: Cross multiply
    406,417.40x = 609,626.10 × 246,985.10
  4. Step 4: Simplify right side
    406,417.40x = 150,568,563,271.11
  5. Step 5: Solve for x
    x = 150,568,563,271.11/406,417.40
  6. Step 6: Final answer
    x = 370,477.65

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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.