Home / 786,461.22-1,084,974.93-499,827.51

Finding the Fourth Proportional to 786,461.22, 1,084,974.93 and 499,827.51

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Solution

The fourth proportional to 786,461.22, 1,084,974.93 and 499,827.51 is: 689,544.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,461.22 : 1,084,974.93 = 499,827.51 : x
  2. Step 2: Convert to fraction form
    786,461.22/1,084,974.93 = 499,827.51/x
  3. Step 3: Cross multiply
    786,461.22x = 1,084,974.93 × 499,827.51
  4. Step 4: Simplify right side
    786,461.22x = 542,300,317,674.32
  5. Step 5: Solve for x
    x = 542,300,317,674.32/786,461.22
  6. Step 6: Final answer
    x = 689,544.89

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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.