Home / 656,844.39-906,445.08-355,038.39

Finding the Fourth Proportional to 656,844.39, 906,445.08 and 355,038.39

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Solution

The fourth proportional to 656,844.39, 906,445.08 and 355,038.39 is: 489,952.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,844.39 : 906,445.08 = 355,038.39 : x
  2. Step 2: Convert to fraction form
    656,844.39/906,445.08 = 355,038.39/x
  3. Step 3: Cross multiply
    656,844.39x = 906,445.08 × 355,038.39
  4. Step 4: Simplify right side
    656,844.39x = 321,822,801,826.62
  5. Step 5: Solve for x
    x = 321,822,801,826.62/656,844.39
  6. Step 6: Final answer
    x = 489,952.88

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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.