Home / 1,412,421.80-2,118,632.70-748,869.80

Finding the Fourth Proportional to 1,412,421.80, 2,118,632.70 and 748,869.80

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Solution

The fourth proportional to 1,412,421.80, 2,118,632.70 and 748,869.80 is: 1,123,304.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,421.80 : 2,118,632.70 = 748,869.80 : x
  2. Step 2: Convert to fraction form
    1,412,421.80/2,118,632.70 = 748,869.80/x
  3. Step 3: Cross multiply
    1,412,421.80x = 2,118,632.70 × 748,869.80
  4. Step 4: Simplify right side
    1,412,421.80x = 1,586,580,046,322.46
  5. Step 5: Solve for x
    x = 1,586,580,046,322.46/1,412,421.80
  6. Step 6: Final answer
    x = 1,123,304.70

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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.