Home / 688,274.91-1,032,361.34-288,899.55

Finding the Fourth Proportional to 688,274.91, 1,032,361.34 and 288,899.55

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Solution

The fourth proportional to 688,274.91, 1,032,361.34 and 288,899.55 is: 433,327.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,274.91 : 1,032,361.34 = 288,899.55 : x
  2. Step 2: Convert to fraction form
    688,274.91/1,032,361.34 = 288,899.55/x
  3. Step 3: Cross multiply
    688,274.91x = 1,032,361.34 × 288,899.55
  4. Step 4: Simplify right side
    688,274.91x = 298,248,725,118.90
  5. Step 5: Solve for x
    x = 298,248,725,118.90/688,274.91
  6. Step 6: Final answer
    x = 433,327.91

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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.