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Finding the Fourth Proportional to 472,287.02, 651,756.48 and 257,422.76

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Solution

The fourth proportional to 472,287.02, 651,756.48 and 257,422.76 is: 355,243.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,287.02 : 651,756.48 = 257,422.76 : x
  2. Step 2: Convert to fraction form
    472,287.02/651,756.48 = 257,422.76/x
  3. Step 3: Cross multiply
    472,287.02x = 651,756.48 × 257,422.76
  4. Step 4: Simplify right side
    472,287.02x = 167,776,951,929.49
  5. Step 5: Solve for x
    x = 167,776,951,929.49/472,287.02
  6. Step 6: Final answer
    x = 355,243.62

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1.5x scale

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.