Home / 1,689,503.31-2,331,502.52-915,116.67

Finding the Fourth Proportional to 1,689,503.31, 2,331,502.52 and 915,116.67

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Solution

The fourth proportional to 1,689,503.31, 2,331,502.52 and 915,116.67 is: 1,262,854.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,503.31 : 2,331,502.52 = 915,116.67 : x
  2. Step 2: Convert to fraction form
    1,689,503.31/2,331,502.52 = 915,116.67/x
  3. Step 3: Cross multiply
    1,689,503.31x = 2,331,502.52 × 915,116.67
  4. Step 4: Simplify right side
    1,689,503.31x = 2,133,596,817,623.43
  5. Step 5: Solve for x
    x = 2,133,596,817,623.43/1,689,503.31
  6. Step 6: Final answer
    x = 1,262,854.48

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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.