Home / 768,076.40-1,152,114.60-684,095.60

Finding the Fourth Proportional to 768,076.40, 1,152,114.60 and 684,095.60

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Solution

The fourth proportional to 768,076.40, 1,152,114.60 and 684,095.60 is: 1,026,143.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,076.40 : 1,152,114.60 = 684,095.60 : x
  2. Step 2: Convert to fraction form
    768,076.40/1,152,114.60 = 684,095.60/x
  3. Step 3: Cross multiply
    768,076.40x = 1,152,114.60 × 684,095.60
  4. Step 4: Simplify right side
    768,076.40x = 788,156,528,555.76
  5. Step 5: Solve for x
    x = 788,156,528,555.76/768,076.40
  6. Step 6: Final answer
    x = 1,026,143.40

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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.