Home / 1,272,459.42-1,908,639.26-431,011.14

Finding the Fourth Proportional to 1,272,459.42, 1,908,639.26 and 431,011.14

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Solution

The fourth proportional to 1,272,459.42, 1,908,639.26 and 431,011.14 is: 646,499.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,459.42 : 1,908,639.26 = 431,011.14 : x
  2. Step 2: Convert to fraction form
    1,272,459.42/1,908,639.26 = 431,011.14/x
  3. Step 3: Cross multiply
    1,272,459.42x = 1,908,639.26 × 431,011.14
  4. Step 4: Simplify right side
    1,272,459.42x = 822,644,783,301.36
  5. Step 5: Solve for x
    x = 822,644,783,301.36/1,272,459.42
  6. Step 6: Final answer
    x = 646,499.82

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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.