Home / 742,487.40-1,113,731.10-534,090.60

Finding the Fourth Proportional to 742,487.40, 1,113,731.10 and 534,090.60

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Solution

The fourth proportional to 742,487.40, 1,113,731.10 and 534,090.60 is: 801,135.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,487.40 : 1,113,731.10 = 534,090.60 : x
  2. Step 2: Convert to fraction form
    742,487.40/1,113,731.10 = 534,090.60/x
  3. Step 3: Cross multiply
    742,487.40x = 1,113,731.10 × 534,090.60
  4. Step 4: Simplify right side
    742,487.40x = 594,833,311,437.66
  5. Step 5: Solve for x
    x = 594,833,311,437.66/742,487.40
  6. Step 6: Final answer
    x = 801,135.90

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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.