Home / 1,281,915.90-1,920,339.45-1,124,322.30

Finding the Fourth Proportional to 1,281,915.90, 1,920,339.45 and 1,124,322.30

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Solution

The fourth proportional to 1,281,915.90, 1,920,339.45 and 1,124,322.30 is: 1,684,260.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,915.90 : 1,920,339.45 = 1,124,322.30 : x
  2. Step 2: Convert to fraction form
    1,281,915.90/1,920,339.45 = 1,124,322.30/x
  3. Step 3: Cross multiply
    1,281,915.90x = 1,920,339.45 × 1,124,322.30
  4. Step 4: Simplify right side
    1,281,915.90x = 2,159,080,467,204.74
  5. Step 5: Solve for x
    x = 2,159,080,467,204.74/1,281,915.90
  6. Step 6: Final answer
    x = 1,684,260.62

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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.