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Finding the Fourth Proportional to 531,995.81, 734,053.78 and 317,155.87

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Solution

The fourth proportional to 531,995.81, 734,053.78 and 317,155.87 is: 437,615.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,995.81 : 734,053.78 = 317,155.87 : x
  2. Step 2: Convert to fraction form
    531,995.81/734,053.78 = 317,155.87/x
  3. Step 3: Cross multiply
    531,995.81x = 734,053.78 × 317,155.87
  4. Step 4: Simplify right side
    531,995.81x = 232,809,462,594.66
  5. Step 5: Solve for x
    x = 232,809,462,594.66/531,995.81
  6. Step 6: Final answer
    x = 437,615.22

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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.