Home / 869,726.81-1,200,354.23-530,391.89

Finding the Fourth Proportional to 869,726.81, 1,200,354.23 and 530,391.89

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Solution

The fourth proportional to 869,726.81, 1,200,354.23 and 530,391.89 is: 732,020.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,726.81 : 1,200,354.23 = 530,391.89 : x
  2. Step 2: Convert to fraction form
    869,726.81/1,200,354.23 = 530,391.89/x
  3. Step 3: Cross multiply
    869,726.81x = 1,200,354.23 × 530,391.89
  4. Step 4: Simplify right side
    869,726.81x = 636,658,153,046.06
  5. Step 5: Solve for x
    x = 636,658,153,046.06/869,726.81
  6. Step 6: Final answer
    x = 732,020.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.