Home / 905,544.72-1,249,591.26-497,637.78

Finding the Fourth Proportional to 905,544.72, 1,249,591.26 and 497,637.78

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Solution

The fourth proportional to 905,544.72, 1,249,591.26 and 497,637.78 is: 686,706.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,544.72 : 1,249,591.26 = 497,637.78 : x
  2. Step 2: Convert to fraction form
    905,544.72/1,249,591.26 = 497,637.78/x
  3. Step 3: Cross multiply
    905,544.72x = 1,249,591.26 × 497,637.78
  4. Step 4: Simplify right side
    905,544.72x = 621,843,820,533.80
  5. Step 5: Solve for x
    x = 621,843,820,533.80/905,544.72
  6. Step 6: Final answer
    x = 686,706.91

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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.