Home / 1,262,421.68-1,742,153.06-718,592.48

Finding the Fourth Proportional to 1,262,421.68, 1,742,153.06 and 718,592.48

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Solution

The fourth proportional to 1,262,421.68, 1,742,153.06 and 718,592.48 is: 991,663.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,421.68 : 1,742,153.06 = 718,592.48 : x
  2. Step 2: Convert to fraction form
    1,262,421.68/1,742,153.06 = 718,592.48/x
  3. Step 3: Cross multiply
    1,262,421.68x = 1,742,153.06 × 718,592.48
  4. Step 4: Simplify right side
    1,262,421.68x = 1,251,898,087,924.99
  5. Step 5: Solve for x
    x = 1,251,898,087,924.99/1,262,421.68
  6. Step 6: Final answer
    x = 991,663.96

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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.