Home / 1,272,458.42-1,908,637.76-431,010.14

Finding the Fourth Proportional to 1,272,458.42, 1,908,637.76 and 431,010.14

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Solution

The fourth proportional to 1,272,458.42, 1,908,637.76 and 431,010.14 is: 646,498.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,458.42 : 1,908,637.76 = 431,010.14 : x
  2. Step 2: Convert to fraction form
    1,272,458.42/1,908,637.76 = 431,010.14/x
  3. Step 3: Cross multiply
    1,272,458.42x = 1,908,637.76 × 431,010.14
  4. Step 4: Simplify right side
    1,272,458.42x = 822,642,228,146.89
  5. Step 5: Solve for x
    x = 822,642,228,146.89/1,272,458.42
  6. Step 6: Final answer
    x = 646,498.32

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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.