Home / 639,258.42-958,637.04-239,681.36

Finding the Fourth Proportional to 639,258.42, 958,637.04 and 239,681.36

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Solution

The fourth proportional to 639,258.42, 958,637.04 and 239,681.36 is: 359,428.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,258.42 : 958,637.04 = 239,681.36 : x
  2. Step 2: Convert to fraction form
    639,258.42/958,637.04 = 239,681.36/x
  3. Step 3: Cross multiply
    639,258.42x = 958,637.04 × 239,681.36
  4. Step 4: Simplify right side
    639,258.42x = 229,767,429,493.57
  5. Step 5: Solve for x
    x = 229,767,429,493.57/639,258.42
  6. Step 6: Final answer
    x = 359,428.08

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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.