Home / 1,124,505-1,551,787.20-665,643.24

Finding the Fourth Proportional to 1,124,505, 1,551,787.20 and 665,643.24

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Solution

The fourth proportional to 1,124,505, 1,551,787.20 and 665,643.24 is: 918,570.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,505 : 1,551,787.20 = 665,643.24 : x
  2. Step 2: Convert to fraction form
    1,124,505/1,551,787.20 = 665,643.24/x
  3. Step 3: Cross multiply
    1,124,505x = 1,551,787.20 × 665,643.24
  4. Step 4: Simplify right side
    1,124,505x = 1,032,936,659,598.53
  5. Step 5: Solve for x
    x = 1,032,936,659,598.53/1,124,505
  6. Step 6: Final answer
    x = 918,570.09

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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.