Home / 815,501.40-1,223,252.10-776,135.40

Finding the Fourth Proportional to 815,501.40, 1,223,252.10 and 776,135.40

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Solution

The fourth proportional to 815,501.40, 1,223,252.10 and 776,135.40 is: 1,164,203.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,501.40 : 1,223,252.10 = 776,135.40 : x
  2. Step 2: Convert to fraction form
    815,501.40/1,223,252.10 = 776,135.40/x
  3. Step 3: Cross multiply
    815,501.40x = 1,223,252.10 × 776,135.40
  4. Step 4: Simplify right side
    815,501.40x = 949,409,257,934.34
  5. Step 5: Solve for x
    x = 949,409,257,934.34/815,501.40
  6. Step 6: Final answer
    x = 1,164,203.10

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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.