Home / 656,926.16-906,557.64-355,120.16

Finding the Fourth Proportional to 656,926.16, 906,557.64 and 355,120.16

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Solution

The fourth proportional to 656,926.16, 906,557.64 and 355,120.16 is: 490,065.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,926.16 : 906,557.64 = 355,120.16 : x
  2. Step 2: Convert to fraction form
    656,926.16/906,557.64 = 355,120.16/x
  3. Step 3: Cross multiply
    656,926.16x = 906,557.64 × 355,120.16
  4. Step 4: Simplify right side
    656,926.16x = 321,936,894,166.02
  5. Step 5: Solve for x
    x = 321,936,894,166.02/656,926.16
  6. Step 6: Final answer
    x = 490,065.57

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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.