Home / 905,654.79-1,249,816.52-497,794.32

Finding the Fourth Proportional to 905,654.79, 1,249,816.52 and 497,794.32

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Solution

The fourth proportional to 905,654.79, 1,249,816.52 and 497,794.32 is: 686,963.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,654.79 : 1,249,816.52 = 497,794.32 : x
  2. Step 2: Convert to fraction form
    905,654.79/1,249,816.52 = 497,794.32/x
  3. Step 3: Cross multiply
    905,654.79x = 1,249,816.52 × 497,794.32
  4. Step 4: Simplify right side
    905,654.79x = 622,151,564,698.17
  5. Step 5: Solve for x
    x = 622,151,564,698.17/905,654.79
  6. Step 6: Final answer
    x = 686,963.26

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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.