Home / 1,124,440.89-1,551,730.32-665,925.36

Finding the Fourth Proportional to 1,124,440.89, 1,551,730.32 and 665,925.36

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Solution

The fourth proportional to 1,124,440.89, 1,551,730.32 and 665,925.36 is: 918,978.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,440.89 : 1,551,730.32 = 665,925.36 : x
  2. Step 2: Convert to fraction form
    1,124,440.89/1,551,730.32 = 665,925.36/x
  3. Step 3: Cross multiply
    1,124,440.89x = 1,551,730.32 × 665,925.36
  4. Step 4: Simplify right side
    1,124,440.89x = 1,033,336,571,968.92
  5. Step 5: Solve for x
    x = 1,033,336,571,968.92/1,124,440.89
  6. Step 6: Final answer
    x = 918,978.12

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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.