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Finding the Fourth Proportional to 521,506.04, 719,509.80 and 292,028.96

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Solution

The fourth proportional to 521,506.04, 719,509.80 and 292,028.96 is: 402,905.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,506.04 : 719,509.80 = 292,028.96 : x
  2. Step 2: Convert to fraction form
    521,506.04/719,509.80 = 292,028.96/x
  3. Step 3: Cross multiply
    521,506.04x = 719,509.80 × 292,028.96
  4. Step 4: Simplify right side
    521,506.04x = 210,117,698,603.81
  5. Step 5: Solve for x
    x = 210,117,698,603.81/521,506.04
  6. Step 6: Final answer
    x = 402,905.59

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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.