Home / 680,905.71-1,020,005.35-625,104.40

Finding the Fourth Proportional to 680,905.71, 1,020,005.35 and 625,104.40

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Solution

The fourth proportional to 680,905.71, 1,020,005.35 and 625,104.40 is: 936,414.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,905.71 : 1,020,005.35 = 625,104.40 : x
  2. Step 2: Convert to fraction form
    680,905.71/1,020,005.35 = 625,104.40/x
  3. Step 3: Cross multiply
    680,905.71x = 1,020,005.35 × 625,104.40
  4. Step 4: Simplify right side
    680,905.71x = 637,609,834,619.36
  5. Step 5: Solve for x
    x = 637,609,834,619.36/680,905.71
  6. Step 6: Final answer
    x = 936,414.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.