Home / 434,585.40-651,878.10-412,442.03

Finding the Fourth Proportional to 434,585.40, 651,878.10 and 412,442.03

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Solution

The fourth proportional to 434,585.40, 651,878.10 and 412,442.03 is: 618,663.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,585.40 : 651,878.10 = 412,442.03 : x
  2. Step 2: Convert to fraction form
    434,585.40/651,878.10 = 412,442.03/x
  3. Step 3: Cross multiply
    434,585.40x = 651,878.10 × 412,442.03
  4. Step 4: Simplify right side
    434,585.40x = 268,861,923,617.15
  5. Step 5: Solve for x
    x = 268,861,923,617.15/434,585.40
  6. Step 6: Final answer
    x = 618,663.04

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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.