Home / 688,422.90-1,032,350.11-298,954.65

Finding the Fourth Proportional to 688,422.90, 1,032,350.11 and 298,954.65

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Solution

The fourth proportional to 688,422.90, 1,032,350.11 and 298,954.65 is: 448,308.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,422.90 : 1,032,350.11 = 298,954.65 : x
  2. Step 2: Convert to fraction form
    688,422.90/1,032,350.11 = 298,954.65/x
  3. Step 3: Cross multiply
    688,422.90x = 1,032,350.11 × 298,954.65
  4. Step 4: Simplify right side
    688,422.90x = 308,625,865,812.51
  5. Step 5: Solve for x
    x = 308,625,865,812.51/688,422.90
  6. Step 6: Final answer
    x = 448,308.54

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1.5x scale

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.