Home / 1,087,631.40-1,631,447.10-709,717.80

Finding the Fourth Proportional to 1,087,631.40, 1,631,447.10 and 709,717.80

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Solution

The fourth proportional to 1,087,631.40, 1,631,447.10 and 709,717.80 is: 1,064,576.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,631.40 : 1,631,447.10 = 709,717.80 : x
  2. Step 2: Convert to fraction form
    1,087,631.40/1,631,447.10 = 709,717.80/x
  3. Step 3: Cross multiply
    1,087,631.40x = 1,631,447.10 × 709,717.80
  4. Step 4: Simplify right side
    1,087,631.40x = 1,157,867,046,628.38
  5. Step 5: Solve for x
    x = 1,157,867,046,628.38/1,087,631.40
  6. Step 6: Final answer
    x = 1,064,576.70

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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.