Home / 951,220.81-1,312,684.40-521,491.71

Finding the Fourth Proportional to 951,220.81, 1,312,684.40 and 521,491.71

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Solution

The fourth proportional to 951,220.81, 1,312,684.40 and 521,491.71 is: 719,658.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    951,220.81 : 1,312,684.40 = 521,491.71 : x
  2. Step 2: Convert to fraction form
    951,220.81/1,312,684.40 = 521,491.71/x
  3. Step 3: Cross multiply
    951,220.81x = 1,312,684.40 × 521,491.71
  4. Step 4: Simplify right side
    951,220.81x = 684,554,029,838.87
  5. Step 5: Solve for x
    x = 684,554,029,838.87/951,220.81
  6. Step 6: Final answer
    x = 719,658.39

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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.