Home / 854,438.52-1,282,428.18-455,411.64

Finding the Fourth Proportional to 854,438.52, 1,282,428.18 and 455,411.64

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Solution

The fourth proportional to 854,438.52, 1,282,428.18 and 455,411.64 is: 683,528.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,438.52 : 1,282,428.18 = 455,411.64 : x
  2. Step 2: Convert to fraction form
    854,438.52/1,282,428.18 = 455,411.64/x
  3. Step 3: Cross multiply
    854,438.52x = 1,282,428.18 × 455,411.64
  4. Step 4: Simplify right side
    854,438.52x = 584,032,720,636.02
  5. Step 5: Solve for x
    x = 584,032,720,636.02/854,438.52
  6. Step 6: Final answer
    x = 683,528.08

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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.