Home / 1,500,530.81-2,070,929.63-855,803.21

Finding the Fourth Proportional to 1,500,530.81, 2,070,929.63 and 855,803.21

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Solution

The fourth proportional to 1,500,530.81, 2,070,929.63 and 855,803.21 is: 1,181,120.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,530.81 : 2,070,929.63 = 855,803.21 : x
  2. Step 2: Convert to fraction form
    1,500,530.81/2,070,929.63 = 855,803.21/x
  3. Step 3: Cross multiply
    1,500,530.81x = 2,070,929.63 × 855,803.21
  4. Step 4: Simplify right side
    1,500,530.81x = 1,772,308,216,822.97
  5. Step 5: Solve for x
    x = 1,772,308,216,822.97/1,500,530.81
  6. Step 6: Final answer
    x = 1,181,120.85

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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.