Home / 1,688,366.20-2,329,929.44-913,977.22

Finding the Fourth Proportional to 1,688,366.20, 2,329,929.44 and 913,977.22

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Solution

The fourth proportional to 1,688,366.20, 2,329,929.44 and 913,977.22 is: 1,261,279.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,366.20 : 2,329,929.44 = 913,977.22 : x
  2. Step 2: Convert to fraction form
    1,688,366.20/2,329,929.44 = 913,977.22/x
  3. Step 3: Cross multiply
    1,688,366.20x = 2,329,929.44 × 913,977.22
  4. Step 4: Simplify right side
    1,688,366.20x = 2,129,502,432,367.36
  5. Step 5: Solve for x
    x = 2,129,502,432,367.36/1,688,366.20
  6. Step 6: Final answer
    x = 1,261,279.95

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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.