Home / 1,109,328.40-1,664,648.70-731,341.90

Finding the Fourth Proportional to 1,109,328.40, 1,664,648.70 and 731,341.90

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Solution

The fourth proportional to 1,109,328.40, 1,664,648.70 and 731,341.90 is: 1,097,445.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,328.40 : 1,664,648.70 = 731,341.90 : x
  2. Step 2: Convert to fraction form
    1,109,328.40/1,664,648.70 = 731,341.90/x
  3. Step 3: Cross multiply
    1,109,328.40x = 1,664,648.70 × 731,341.90
  4. Step 4: Simplify right side
    1,109,328.40x = 1,217,427,343,090.53
  5. Step 5: Solve for x
    x = 1,217,427,343,090.53/1,109,328.40
  6. Step 6: Final answer
    x = 1,097,445.39

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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.