Home / 1,148,889.56-1,723,343.70-390,903.28

Finding the Fourth Proportional to 1,148,889.56, 1,723,343.70 and 390,903.28

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Solution

The fourth proportional to 1,148,889.56, 1,723,343.70 and 390,903.28 is: 586,358.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,889.56 : 1,723,343.70 = 390,903.28 : x
  2. Step 2: Convert to fraction form
    1,148,889.56/1,723,343.70 = 390,903.28/x
  3. Step 3: Cross multiply
    1,148,889.56x = 1,723,343.70 × 390,903.28
  4. Step 4: Simplify right side
    1,148,889.56x = 673,660,704,897.34
  5. Step 5: Solve for x
    x = 673,660,704,897.34/1,148,889.56
  6. Step 6: Final answer
    x = 586,358.10

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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.