Home / 636,622.04-956,862.33-421,215.47

Finding the Fourth Proportional to 636,622.04, 956,862.33 and 421,215.47

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Solution

The fourth proportional to 636,622.04, 956,862.33 and 421,215.47 is: 633,099.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,622.04 : 956,862.33 = 421,215.47 : x
  2. Step 2: Convert to fraction form
    636,622.04/956,862.33 = 421,215.47/x
  3. Step 3: Cross multiply
    636,622.04x = 956,862.33 × 421,215.47
  4. Step 4: Simplify right side
    636,622.04x = 403,045,211,271.93
  5. Step 5: Solve for x
    x = 403,045,211,271.93/636,622.04
  6. Step 6: Final answer
    x = 633,099.68

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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.