Home / 905,669.52-1,249,836.88-497,809.08

Finding the Fourth Proportional to 905,669.52, 1,249,836.88 and 497,809.08

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Solution

The fourth proportional to 905,669.52, 1,249,836.88 and 497,809.08 is: 686,983.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,669.52 : 1,249,836.88 = 497,809.08 : x
  2. Step 2: Convert to fraction form
    905,669.52/1,249,836.88 = 497,809.08/x
  3. Step 3: Cross multiply
    905,669.52x = 1,249,836.88 × 497,809.08
  4. Step 4: Simplify right side
    905,669.52x = 622,180,147,382.87
  5. Step 5: Solve for x
    x = 622,180,147,382.87/905,669.52
  6. Step 6: Final answer
    x = 686,983.64

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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.