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Finding the Fourth Proportional to 521,038.64, 719,033.33 and 282,574.64

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Solution

The fourth proportional to 521,038.64, 719,033.33 and 282,574.64 is: 389,953.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,038.64 : 719,033.33 = 282,574.64 : x
  2. Step 2: Convert to fraction form
    521,038.64/719,033.33 = 282,574.64/x
  3. Step 3: Cross multiply
    521,038.64x = 719,033.33 × 282,574.64
  4. Step 4: Simplify right side
    521,038.64x = 203,180,584,372.75
  5. Step 5: Solve for x
    x = 203,180,584,372.75/521,038.64
  6. Step 6: Final answer
    x = 389,953.01

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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.