Home / 1,455,756.24-2,009,005.20-811,176.72

Finding the Fourth Proportional to 1,455,756.24, 2,009,005.20 and 811,176.72

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Solution

The fourth proportional to 1,455,756.24, 2,009,005.20 and 811,176.72 is: 1,119,458.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,756.24 : 2,009,005.20 = 811,176.72 : x
  2. Step 2: Convert to fraction form
    1,455,756.24/2,009,005.20 = 811,176.72/x
  3. Step 3: Cross multiply
    1,455,756.24x = 2,009,005.20 × 811,176.72
  4. Step 4: Simplify right side
    1,455,756.24x = 1,629,658,248,598.94
  5. Step 5: Solve for x
    x = 1,629,658,248,598.94/1,455,756.24
  6. Step 6: Final answer
    x = 1,119,458.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.