Home / 1,281,649.65-1,921,343.07-483,491.70

Finding the Fourth Proportional to 1,281,649.65, 1,921,343.07 and 483,491.70

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Solution

The fourth proportional to 1,281,649.65, 1,921,343.07 and 483,491.70 is: 724,810.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,649.65 : 1,921,343.07 = 483,491.70 : x
  2. Step 2: Convert to fraction form
    1,281,649.65/1,921,343.07 = 483,491.70/x
  3. Step 3: Cross multiply
    1,281,649.65x = 1,921,343.07 × 483,491.70
  4. Step 4: Simplify right side
    1,281,649.65x = 928,953,427,197.52
  5. Step 5: Solve for x
    x = 928,953,427,197.52/1,281,649.65
  6. Step 6: Final answer
    x = 724,810.74

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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.