Home / 631,614.98-947,439.76-210,875.78

Finding the Fourth Proportional to 631,614.98, 947,439.76 and 210,875.78

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Solution

The fourth proportional to 631,614.98, 947,439.76 and 210,875.78 is: 316,319.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,614.98 : 947,439.76 = 210,875.78 : x
  2. Step 2: Convert to fraction form
    631,614.98/947,439.76 = 210,875.78/x
  3. Step 3: Cross multiply
    631,614.98x = 947,439.76 × 210,875.78
  4. Step 4: Simplify right side
    631,614.98x = 199,792,098,393.01
  5. Step 5: Solve for x
    x = 199,792,098,393.01/631,614.98
  6. Step 6: Final answer
    x = 316,319.44

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1.5x scale

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.