Home / 1,212,042.76-1,817,664-402,240.40

Finding the Fourth Proportional to 1,212,042.76, 1,817,664 and 402,240.40

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Solution

The fourth proportional to 1,212,042.76, 1,817,664 and 402,240.40 is: 603,227.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,042.76 : 1,817,664 = 402,240.40 : x
  2. Step 2: Convert to fraction form
    1,212,042.76/1,817,664 = 402,240.40/x
  3. Step 3: Cross multiply
    1,212,042.76x = 1,817,664 × 402,240.40
  4. Step 4: Simplify right side
    1,212,042.76x = 731,137,894,425.60
  5. Step 5: Solve for x
    x = 731,137,894,425.60/1,212,042.76
  6. Step 6: Final answer
    x = 603,227.81

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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.