Home / 1,116,595.21-1,540,407.21-686,621.29

Finding the Fourth Proportional to 1,116,595.21, 1,540,407.21 and 686,621.29

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Solution

The fourth proportional to 1,116,595.21, 1,540,407.21 and 686,621.29 is: 947,233.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,595.21 : 1,540,407.21 = 686,621.29 : x
  2. Step 2: Convert to fraction form
    1,116,595.21/1,540,407.21 = 686,621.29/x
  3. Step 3: Cross multiply
    1,116,595.21x = 1,540,407.21 × 686,621.29
  4. Step 4: Simplify right side
    1,116,595.21x = 1,057,676,385,655.50
  5. Step 5: Solve for x
    x = 1,057,676,385,655.50/1,116,595.21
  6. Step 6: Final answer
    x = 947,233.50

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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.