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Finding the Fourth Proportional to 620,834.63, 930,409.88 and 283,457.07

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Solution

The fourth proportional to 620,834.63, 930,409.88 and 283,457.07 is: 424,801.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,834.63 : 930,409.88 = 283,457.07 : x
  2. Step 2: Convert to fraction form
    620,834.63/930,409.88 = 283,457.07/x
  3. Step 3: Cross multiply
    620,834.63x = 930,409.88 × 283,457.07
  4. Step 4: Simplify right side
    620,834.63x = 263,731,257,066.57
  5. Step 5: Solve for x
    x = 263,731,257,066.57/620,834.63
  6. Step 6: Final answer
    x = 424,801.14

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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.