Home / 911,929.44-1,258,436.88-509,521.44

Finding the Fourth Proportional to 911,929.44, 1,258,436.88 and 509,521.44

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Solution

The fourth proportional to 911,929.44, 1,258,436.88 and 509,521.44 is: 703,125.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,929.44 : 1,258,436.88 = 509,521.44 : x
  2. Step 2: Convert to fraction form
    911,929.44/1,258,436.88 = 509,521.44/x
  3. Step 3: Cross multiply
    911,929.44x = 1,258,436.88 × 509,521.44
  4. Step 4: Simplify right side
    911,929.44x = 641,200,571,246.71
  5. Step 5: Solve for x
    x = 641,200,571,246.71/911,929.44
  6. Step 6: Final answer
    x = 703,125.20

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1.5x scale

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.