Home / 1,427,175.04-2,140,777.92-429,911.68

Finding the Fourth Proportional to 1,427,175.04, 2,140,777.92 and 429,911.68

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Solution

The fourth proportional to 1,427,175.04, 2,140,777.92 and 429,911.68 is: 644,872.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,175.04 : 2,140,777.92 = 429,911.68 : x
  2. Step 2: Convert to fraction form
    1,427,175.04/2,140,777.92 = 429,911.68/x
  3. Step 3: Cross multiply
    1,427,175.04x = 2,140,777.92 × 429,911.68
  4. Step 4: Simplify right side
    1,427,175.04x = 920,345,432,094.11
  5. Step 5: Solve for x
    x = 920,345,432,094.11/1,427,175.04
  6. Step 6: Final answer
    x = 644,872.15

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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.