Home / 656,837.19-906,434.82-355,031.19

Finding the Fourth Proportional to 656,837.19, 906,434.82 and 355,031.19

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Solution

The fourth proportional to 656,837.19, 906,434.82 and 355,031.19 is: 489,942.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,837.19 : 906,434.82 = 355,031.19 : x
  2. Step 2: Convert to fraction form
    656,837.19/906,434.82 = 355,031.19/x
  3. Step 3: Cross multiply
    656,837.19x = 906,434.82 × 355,031.19
  4. Step 4: Simplify right side
    656,837.19x = 321,812,632,802.04
  5. Step 5: Solve for x
    x = 321,812,632,802.04/656,837.19
  6. Step 6: Final answer
    x = 489,942.77

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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.