Home / 763,495.35-1,144,988.71-307,968.93

Finding the Fourth Proportional to 763,495.35, 1,144,988.71 and 307,968.93

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Solution

The fourth proportional to 763,495.35, 1,144,988.71 and 307,968.93 is: 461,850.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,495.35 : 1,144,988.71 = 307,968.93 : x
  2. Step 2: Convert to fraction form
    763,495.35/1,144,988.71 = 307,968.93/x
  3. Step 3: Cross multiply
    763,495.35x = 1,144,988.71 × 307,968.93
  4. Step 4: Simplify right side
    763,495.35x = 352,620,949,257.71
  5. Step 5: Solve for x
    x = 352,620,949,257.71/763,495.35
  6. Step 6: Final answer
    x = 461,850.82

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1.5x scale

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.