Home / 1,142,256.65-1,711,582.49-421,606.47

Finding the Fourth Proportional to 1,142,256.65, 1,711,582.49 and 421,606.47

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Solution

The fourth proportional to 1,142,256.65, 1,711,582.49 and 421,606.47 is: 631,744.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,256.65 : 1,711,582.49 = 421,606.47 : x
  2. Step 2: Convert to fraction form
    1,142,256.65/1,711,582.49 = 421,606.47/x
  3. Step 3: Cross multiply
    1,142,256.65x = 1,711,582.49 × 421,606.47
  4. Step 4: Simplify right side
    1,142,256.65x = 721,614,252,776.73
  5. Step 5: Solve for x
    x = 721,614,252,776.73/1,142,256.65
  6. Step 6: Final answer
    x = 631,744.41

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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.