Home / 678,589.60-1,015,810.80-529,290.40

Finding the Fourth Proportional to 678,589.60, 1,015,810.80 and 529,290.40

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Solution

The fourth proportional to 678,589.60, 1,015,810.80 and 529,290.40 is: 792,318.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,589.60 : 1,015,810.80 = 529,290.40 : x
  2. Step 2: Convert to fraction form
    678,589.60/1,015,810.80 = 529,290.40/x
  3. Step 3: Cross multiply
    678,589.60x = 1,015,810.80 × 529,290.40
  4. Step 4: Simplify right side
    678,589.60x = 537,658,904,656.32
  5. Step 5: Solve for x
    x = 537,658,904,656.32/678,589.60
  6. Step 6: Final answer
    x = 792,318.22

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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.