Home / 905,118.05-1,357,656.04-455,718.25

Finding the Fourth Proportional to 905,118.05, 1,357,656.04 and 455,718.25

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Solution

The fourth proportional to 905,118.05, 1,357,656.04 and 455,718.25 is: 683,566.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,118.05 : 1,357,656.04 = 455,718.25 : x
  2. Step 2: Convert to fraction form
    905,118.05/1,357,656.04 = 455,718.25/x
  3. Step 3: Cross multiply
    905,118.05x = 1,357,656.04 × 455,718.25
  4. Step 4: Simplify right side
    905,118.05x = 618,708,634,354.03
  5. Step 5: Solve for x
    x = 618,708,634,354.03/905,118.05
  6. Step 6: Final answer
    x = 683,566.79

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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.