Home / 1,272,068.20-1,908,283.74-430,860.52

Finding the Fourth Proportional to 1,272,068.20, 1,908,283.74 and 430,860.52

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Solution

The fourth proportional to 1,272,068.20, 1,908,283.74 and 430,860.52 is: 646,352.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,068.20 : 1,908,283.74 = 430,860.52 : x
  2. Step 2: Convert to fraction form
    1,272,068.20/1,908,283.74 = 430,860.52/x
  3. Step 3: Cross multiply
    1,272,068.20x = 1,908,283.74 × 430,860.52
  4. Step 4: Simplify right side
    1,272,068.20x = 822,204,124,523.95
  5. Step 5: Solve for x
    x = 822,204,124,523.95/1,272,068.20
  6. Step 6: Final answer
    x = 646,352.24

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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.