Home / 656,927.55-906,557.55-355,121.55

Finding the Fourth Proportional to 656,927.55, 906,557.55 and 355,121.55

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Solution

The fourth proportional to 656,927.55, 906,557.55 and 355,121.55 is: 490,066.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,927.55 : 906,557.55 = 355,121.55 : x
  2. Step 2: Convert to fraction form
    656,927.55/906,557.55 = 355,121.55/x
  3. Step 3: Cross multiply
    656,927.55x = 906,557.55 × 355,121.55
  4. Step 4: Simplify right side
    656,927.55x = 321,938,122,320.20
  5. Step 5: Solve for x
    x = 321,938,122,320.20/656,927.55
  6. Step 6: Final answer
    x = 490,066.40

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1.5x scale

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.