Home / 875,145.20-1,312,717.80-743,925.20

Finding the Fourth Proportional to 875,145.20, 1,312,717.80 and 743,925.20

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Solution

The fourth proportional to 875,145.20, 1,312,717.80 and 743,925.20 is: 1,115,887.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,145.20 : 1,312,717.80 = 743,925.20 : x
  2. Step 2: Convert to fraction form
    875,145.20/1,312,717.80 = 743,925.20/x
  3. Step 3: Cross multiply
    875,145.20x = 1,312,717.80 × 743,925.20
  4. Step 4: Simplify right side
    875,145.20x = 976,563,851,908.56
  5. Step 5: Solve for x
    x = 976,563,851,908.56/875,145.20
  6. Step 6: Final answer
    x = 1,115,887.80

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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.