Home / 1,280,239.88-1,920,335.10-382,290.04

Finding the Fourth Proportional to 1,280,239.88, 1,920,335.10 and 382,290.04

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Solution

The fourth proportional to 1,280,239.88, 1,920,335.10 and 382,290.04 is: 573,427.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,239.88 : 1,920,335.10 = 382,290.04 : x
  2. Step 2: Convert to fraction form
    1,280,239.88/1,920,335.10 = 382,290.04/x
  3. Step 3: Cross multiply
    1,280,239.88x = 1,920,335.10 × 382,290.04
  4. Step 4: Simplify right side
    1,280,239.88x = 734,124,982,192.40
  5. Step 5: Solve for x
    x = 734,124,982,192.40/1,280,239.88
  6. Step 6: Final answer
    x = 573,427.68

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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.