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Finding the Fourth Proportional to 810,653.76, 1,118,700 and 452,957.76

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Solution

The fourth proportional to 810,653.76, 1,118,700 and 452,957.76 is: 625,080.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,653.76 : 1,118,700 = 452,957.76 : x
  2. Step 2: Convert to fraction form
    810,653.76/1,118,700 = 452,957.76/x
  3. Step 3: Cross multiply
    810,653.76x = 1,118,700 × 452,957.76
  4. Step 4: Simplify right side
    810,653.76x = 506,723,846,112
  5. Step 5: Solve for x
    x = 506,723,846,112/810,653.76
  6. Step 6: Final answer
    x = 625,080.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.