Home / 772,640.40-1,158,960.60-656,000.40

Finding the Fourth Proportional to 772,640.40, 1,158,960.60 and 656,000.40

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Solution

The fourth proportional to 772,640.40, 1,158,960.60 and 656,000.40 is: 984,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,640.40 : 1,158,960.60 = 656,000.40 : x
  2. Step 2: Convert to fraction form
    772,640.40/1,158,960.60 = 656,000.40/x
  3. Step 3: Cross multiply
    772,640.40x = 1,158,960.60 × 656,000.40
  4. Step 4: Simplify right side
    772,640.40x = 760,278,617,184.24
  5. Step 5: Solve for x
    x = 760,278,617,184.24/772,640.40
  6. Step 6: Final answer
    x = 984,000.60

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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.