Home / 901,329.65-1,243,834.81-493,430.21

Finding the Fourth Proportional to 901,329.65, 1,243,834.81 and 493,430.21

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Solution

The fourth proportional to 901,329.65, 1,243,834.81 and 493,430.21 is: 680,933.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,329.65 : 1,243,834.81 = 493,430.21 : x
  2. Step 2: Convert to fraction form
    901,329.65/1,243,834.81 = 493,430.21/x
  3. Step 3: Cross multiply
    901,329.65x = 1,243,834.81 × 493,430.21
  4. Step 4: Simplify right side
    901,329.65x = 613,745,671,503.61
  5. Step 5: Solve for x
    x = 613,745,671,503.61/901,329.65
  6. Step 6: Final answer
    x = 680,933.63

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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.