Home / 423,065.02-634,599.69-142,584.70

Finding the Fourth Proportional to 423,065.02, 634,599.69 and 142,584.70

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Solution

The fourth proportional to 423,065.02, 634,599.69 and 142,584.70 is: 213,877.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,065.02 : 634,599.69 = 142,584.70 : x
  2. Step 2: Convert to fraction form
    423,065.02/634,599.69 = 142,584.70/x
  3. Step 3: Cross multiply
    423,065.02x = 634,599.69 × 142,584.70
  4. Step 4: Simplify right side
    423,065.02x = 90,484,206,418.74
  5. Step 5: Solve for x
    x = 90,484,206,418.74/423,065.02
  6. Step 6: Final answer
    x = 213,877.78

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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.