Home / 1,207,152.82-1,812,265.73-782,465.76

Finding the Fourth Proportional to 1,207,152.82, 1,812,265.73 and 782,465.76

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Solution

The fourth proportional to 1,207,152.82, 1,812,265.73 and 782,465.76 is: 1,174,694.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,152.82 : 1,812,265.73 = 782,465.76 : x
  2. Step 2: Convert to fraction form
    1,207,152.82/1,812,265.73 = 782,465.76/x
  3. Step 3: Cross multiply
    1,207,152.82x = 1,812,265.73 × 782,465.76
  4. Step 4: Simplify right side
    1,207,152.82x = 1,418,035,881,746.40
  5. Step 5: Solve for x
    x = 1,418,035,881,746.40/1,207,152.82
  6. Step 6: Final answer
    x = 1,174,694.59

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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.