Home / 1,207,871.40-1,811,807.10-647,999.40

Finding the Fourth Proportional to 1,207,871.40, 1,811,807.10 and 647,999.40

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Solution

The fourth proportional to 1,207,871.40, 1,811,807.10 and 647,999.40 is: 971,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,871.40 : 1,811,807.10 = 647,999.40 : x
  2. Step 2: Convert to fraction form
    1,207,871.40/1,811,807.10 = 647,999.40/x
  3. Step 3: Cross multiply
    1,207,871.40x = 1,811,807.10 × 647,999.40
  4. Step 4: Simplify right side
    1,207,871.40x = 1,174,049,913,715.74
  5. Step 5: Solve for x
    x = 1,174,049,913,715.74/1,207,871.40
  6. Step 6: Final answer
    x = 971,999.10

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.