Home / 1,148,498.45-1,722,905.28-390,136.35

Finding the Fourth Proportional to 1,148,498.45, 1,722,905.28 and 390,136.35

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Solution

The fourth proportional to 1,148,498.45, 1,722,905.28 and 390,136.35 is: 585,258.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,498.45 : 1,722,905.28 = 390,136.35 : x
  2. Step 2: Convert to fraction form
    1,148,498.45/1,722,905.28 = 390,136.35/x
  3. Step 3: Cross multiply
    1,148,498.45x = 1,722,905.28 × 390,136.35
  4. Step 4: Simplify right side
    1,148,498.45x = 672,167,975,384.25
  5. Step 5: Solve for x
    x = 672,167,975,384.25/1,148,498.45
  6. Step 6: Final answer
    x = 585,258.06

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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.