Home / 1,212,038.76-1,817,658-402,236.40

Finding the Fourth Proportional to 1,212,038.76, 1,817,658 and 402,236.40

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Solution

The fourth proportional to 1,212,038.76, 1,817,658 and 402,236.40 is: 603,221.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,038.76 : 1,817,658 = 402,236.40 : x
  2. Step 2: Convert to fraction form
    1,212,038.76/1,817,658 = 402,236.40/x
  3. Step 3: Cross multiply
    1,212,038.76x = 1,817,658 × 402,236.40
  4. Step 4: Simplify right side
    1,212,038.76x = 731,128,210,351.20
  5. Step 5: Solve for x
    x = 731,128,210,351.20/1,212,038.76
  6. Step 6: Final answer
    x = 603,221.81

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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.