Home / 1,488,790.28-2,053,871.70-915,491.72

Finding the Fourth Proportional to 1,488,790.28, 2,053,871.70 and 915,491.72

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Solution

The fourth proportional to 1,488,790.28, 2,053,871.70 and 915,491.72 is: 1,262,973.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,790.28 : 2,053,871.70 = 915,491.72 : x
  2. Step 2: Convert to fraction form
    1,488,790.28/2,053,871.70 = 915,491.72/x
  3. Step 3: Cross multiply
    1,488,790.28x = 2,053,871.70 × 915,491.72
  4. Step 4: Simplify right side
    1,488,790.28x = 1,880,302,535,292.32
  5. Step 5: Solve for x
    x = 1,880,302,535,292.32/1,488,790.28
  6. Step 6: Final answer
    x = 1,262,973.41

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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.