Home / 1,500,132.31-2,070,174.65-811,803.76

Finding the Fourth Proportional to 1,500,132.31, 2,070,174.65 and 811,803.76

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Solution

The fourth proportional to 1,500,132.31, 2,070,174.65 and 811,803.76 is: 1,120,284.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,132.31 : 2,070,174.65 = 811,803.76 : x
  2. Step 2: Convert to fraction form
    1,500,132.31/2,070,174.65 = 811,803.76/x
  3. Step 3: Cross multiply
    1,500,132.31x = 2,070,174.65 × 811,803.76
  4. Step 4: Simplify right side
    1,500,132.31x = 1,680,575,555,492.23
  5. Step 5: Solve for x
    x = 1,680,575,555,492.23/1,500,132.31
  6. Step 6: Final answer
    x = 1,120,284.89

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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.