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Finding the Fourth Proportional to 630,851.90, 946,277.85 and 406,903.10

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Solution

The fourth proportional to 630,851.90, 946,277.85 and 406,903.10 is: 610,354.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,851.90 : 946,277.85 = 406,903.10 : x
  2. Step 2: Convert to fraction form
    630,851.90/946,277.85 = 406,903.10/x
  3. Step 3: Cross multiply
    630,851.90x = 946,277.85 × 406,903.10
  4. Step 4: Simplify right side
    630,851.90x = 385,043,390,626.34
  5. Step 5: Solve for x
    x = 385,043,390,626.34/630,851.90
  6. Step 6: Final answer
    x = 610,354.65

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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.