Home / 489,623.83-734,439.84-134,657.32

Finding the Fourth Proportional to 489,623.83, 734,439.84 and 134,657.32

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Solution

The fourth proportional to 489,623.83, 734,439.84 and 134,657.32 is: 201,987.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,623.83 : 734,439.84 = 134,657.32 : x
  2. Step 2: Convert to fraction form
    489,623.83/734,439.84 = 134,657.32/x
  3. Step 3: Cross multiply
    489,623.83x = 734,439.84 × 134,657.32
  4. Step 4: Simplify right side
    489,623.83x = 98,897,700,555.63
  5. Step 5: Solve for x
    x = 98,897,700,555.63/489,623.83
  6. Step 6: Final answer
    x = 201,987.11

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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.