Home / 905,666.32-1,249,822.25-497,809.96

Finding the Fourth Proportional to 905,666.32, 1,249,822.25 and 497,809.96

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Solution

The fourth proportional to 905,666.32, 1,249,822.25 and 497,809.96 is: 686,979.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,666.32 : 1,249,822.25 = 497,809.96 : x
  2. Step 2: Convert to fraction form
    905,666.32/1,249,822.25 = 497,809.96/x
  3. Step 3: Cross multiply
    905,666.32x = 1,249,822.25 × 497,809.96
  4. Step 4: Simplify right side
    905,666.32x = 622,173,962,399.58
  5. Step 5: Solve for x
    x = 622,173,962,399.58/905,666.32
  6. Step 6: Final answer
    x = 686,979.24

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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.