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Finding the Fourth Proportional to 456,518.69, 630,197.60 and 272,822.10

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Solution

The fourth proportional to 456,518.69, 630,197.60 and 272,822.10 is: 376,615.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,518.69 : 630,197.60 = 272,822.10 : x
  2. Step 2: Convert to fraction form
    456,518.69/630,197.60 = 272,822.10/x
  3. Step 3: Cross multiply
    456,518.69x = 630,197.60 × 272,822.10
  4. Step 4: Simplify right side
    456,518.69x = 171,931,832,646.96
  5. Step 5: Solve for x
    x = 171,931,832,646.96/456,518.69
  6. Step 6: Final answer
    x = 376,615.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.