Home / 1,386,360.32-1,913,108.88-774,391.54

Finding the Fourth Proportional to 1,386,360.32, 1,913,108.88 and 774,391.54

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Solution

The fourth proportional to 1,386,360.32, 1,913,108.88 and 774,391.54 is: 1,068,622.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,360.32 : 1,913,108.88 = 774,391.54 : x
  2. Step 2: Convert to fraction form
    1,386,360.32/1,913,108.88 = 774,391.54/x
  3. Step 3: Cross multiply
    1,386,360.32x = 1,913,108.88 × 774,391.54
  4. Step 4: Simplify right side
    1,386,360.32x = 1,481,495,331,770.88
  5. Step 5: Solve for x
    x = 1,481,495,331,770.88/1,386,360.32
  6. Step 6: Final answer
    x = 1,068,622.14

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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.