Home / 905,628.28-1,249,795.12-497,722.68

Finding the Fourth Proportional to 905,628.28, 1,249,795.12 and 497,722.68

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Solution

The fourth proportional to 905,628.28, 1,249,795.12 and 497,722.68 is: 686,872.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,628.28 : 1,249,795.12 = 497,722.68 : x
  2. Step 2: Convert to fraction form
    905,628.28/1,249,795.12 = 497,722.68/x
  3. Step 3: Cross multiply
    905,628.28x = 1,249,795.12 × 497,722.68
  4. Step 4: Simplify right side
    905,628.28x = 622,051,376,577.32
  5. Step 5: Solve for x
    x = 622,051,376,577.32/905,628.28
  6. Step 6: Final answer
    x = 686,872.74

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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.