Home / 424,320.04-636,432.54-108,784.36

Finding the Fourth Proportional to 424,320.04, 636,432.54 and 108,784.36

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Solution

The fourth proportional to 424,320.04, 636,432.54 and 108,784.36 is: 163,164.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,320.04 : 636,432.54 = 108,784.36 : x
  2. Step 2: Convert to fraction form
    424,320.04/636,432.54 = 108,784.36/x
  3. Step 3: Cross multiply
    424,320.04x = 636,432.54 × 108,784.36
  4. Step 4: Simplify right side
    424,320.04x = 69,233,906,547.07
  5. Step 5: Solve for x
    x = 69,233,906,547.07/424,320.04
  6. Step 6: Final answer
    x = 163,164.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.