Home / 910,654.57-1,257,128.54-528,607.81

Finding the Fourth Proportional to 910,654.57, 1,257,128.54 and 528,607.81

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Solution

The fourth proportional to 910,654.57, 1,257,128.54 and 528,607.81 is: 729,725.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,654.57 : 1,257,128.54 = 528,607.81 : x
  2. Step 2: Convert to fraction form
    910,654.57/1,257,128.54 = 528,607.81/x
  3. Step 3: Cross multiply
    910,654.57x = 1,257,128.54 × 528,607.81
  4. Step 4: Simplify right side
    910,654.57x = 664,527,964,417.90
  5. Step 5: Solve for x
    x = 664,527,964,417.90/910,654.57
  6. Step 6: Final answer
    x = 729,725.61

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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.