Home / 724,210.10-1,085,964.42-424,788.74

Finding the Fourth Proportional to 724,210.10, 1,085,964.42 and 424,788.74

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Solution

The fourth proportional to 724,210.10, 1,085,964.42 and 424,788.74 is: 636,977.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,210.10 : 1,085,964.42 = 424,788.74 : x
  2. Step 2: Convert to fraction form
    724,210.10/1,085,964.42 = 424,788.74/x
  3. Step 3: Cross multiply
    724,210.10x = 1,085,964.42 × 424,788.74
  4. Step 4: Simplify right side
    724,210.10x = 461,305,457,656.63
  5. Step 5: Solve for x
    x = 461,305,457,656.63/724,210.10
  6. Step 6: Final answer
    x = 636,977.39

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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.