Home / 1,157,998.40-1,739,071.20-1,120,673.60

Finding the Fourth Proportional to 1,157,998.40, 1,739,071.20 and 1,120,673.60

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Solution

The fourth proportional to 1,157,998.40, 1,739,071.20 and 1,120,673.60 is: 1,683,017.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157,998.40 : 1,739,071.20 = 1,120,673.60 : x
  2. Step 2: Convert to fraction form
    1,157,998.40/1,739,071.20 = 1,120,673.60/x
  3. Step 3: Cross multiply
    1,157,998.40x = 1,739,071.20 × 1,120,673.60
  4. Step 4: Simplify right side
    1,157,998.40x = 1,948,931,182,360.32
  5. Step 5: Solve for x
    x = 1,948,931,182,360.32/1,157,998.40
  6. Step 6: Final answer
    x = 1,683,017.16

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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.