Home / 1,642,637.46-2,266,815.57-917,495.76

Finding the Fourth Proportional to 1,642,637.46, 2,266,815.57 and 917,495.76

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Solution

The fourth proportional to 1,642,637.46, 2,266,815.57 and 917,495.76 is: 1,266,130.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642,637.46 : 2,266,815.57 = 917,495.76 : x
  2. Step 2: Convert to fraction form
    1,642,637.46/2,266,815.57 = 917,495.76/x
  3. Step 3: Cross multiply
    1,642,637.46x = 2,266,815.57 × 917,495.76
  4. Step 4: Simplify right side
    1,642,637.46x = 2,079,793,674,176.98
  5. Step 5: Solve for x
    x = 2,079,793,674,176.98/1,642,637.46
  6. Step 6: Final answer
    x = 1,266,130.67

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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.