Home / 987,935.59-1,362,851.67-661,262.49

Finding the Fourth Proportional to 987,935.59, 1,362,851.67 and 661,262.49

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Solution

The fourth proportional to 987,935.59, 1,362,851.67 and 661,262.49 is: 912,207.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,935.59 : 1,362,851.67 = 661,262.49 : x
  2. Step 2: Convert to fraction form
    987,935.59/1,362,851.67 = 661,262.49/x
  3. Step 3: Cross multiply
    987,935.59x = 1,362,851.67 × 661,262.49
  4. Step 4: Simplify right side
    987,935.59x = 901,202,688,804.86
  5. Step 5: Solve for x
    x = 901,202,688,804.86/987,935.59
  6. Step 6: Final answer
    x = 912,207.94

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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.