Home / 1,555,000.77-2,146,995.20-1,090,841.46

Finding the Fourth Proportional to 1,555,000.77, 2,146,995.20 and 1,090,841.46

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Solution

The fourth proportional to 1,555,000.77, 2,146,995.20 and 1,090,841.46 is: 1,506,128.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,000.77 : 2,146,995.20 = 1,090,841.46 : x
  2. Step 2: Convert to fraction form
    1,555,000.77/2,146,995.20 = 1,090,841.46/x
  3. Step 3: Cross multiply
    1,555,000.77x = 2,146,995.20 × 1,090,841.46
  4. Step 4: Simplify right side
    1,555,000.77x = 2,342,031,373,126.78
  5. Step 5: Solve for x
    x = 2,342,031,373,126.78/1,555,000.77
  6. Step 6: Final answer
    x = 1,506,128.75

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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.